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-rw-r--r--compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs10
-rw-r--r--compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs8
-rw-r--r--compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs130
-rw-r--r--compiler/rustc_middle/src/mir/coverage.rs11
-rw-r--r--compiler/rustc_middle/src/mir/pretty.rs4
-rw-r--r--compiler/rustc_mir_transform/src/coverage/mod.rs100
-rw-r--r--compiler/rustc_mir_transform/src/lib.rs1
-rw-r--r--compiler/rustc_span/src/source_map.rs2
-rw-r--r--tests/coverage-run-rustdoc/doctest.coverage4
-rw-r--r--tests/coverage/abort.cov-map8
-rw-r--r--tests/coverage/abort.coverage4
-rw-r--r--tests/coverage/assert.cov-map4
-rw-r--r--tests/coverage/async2.cov-map8
-rw-r--r--tests/coverage/async2.coverage4
-rw-r--r--tests/coverage/branch/if.cov-map18
-rw-r--r--tests/coverage/branch/if.coverage4
-rw-r--r--tests/coverage/closure.cov-map38
-rw-r--r--tests/coverage/closure.coverage4
-rw-r--r--tests/coverage/closure_bug.cov-map10
-rw-r--r--tests/coverage/closure_bug.coverage8
-rw-r--r--tests/coverage/conditions.cov-map22
-rw-r--r--tests/coverage/conditions.coverage8
-rw-r--r--tests/coverage/dead_code.cov-map12
-rw-r--r--tests/coverage/dead_code.coverage2
-rw-r--r--tests/coverage/if.cov-map4
-rw-r--r--tests/coverage/if.coverage2
-rw-r--r--tests/coverage/if_not.cov-map6
-rw-r--r--tests/coverage/inner_items.cov-map6
-rw-r--r--tests/coverage/inner_items.coverage4
-rw-r--r--tests/coverage/lazy_boolean.cov-map8
-rw-r--r--tests/coverage/lazy_boolean.coverage2
-rw-r--r--tests/coverage/loop-break.cov-map4
-rw-r--r--tests/coverage/loops_branches.cov-map12
-rw-r--r--tests/coverage/match_or_pattern.cov-map10
-rw-r--r--tests/coverage/match_or_pattern.coverage8
-rw-r--r--tests/coverage/mcdc/condition-limit.cov-map4
-rw-r--r--tests/coverage/mcdc/if.cov-map4
-rw-r--r--tests/coverage/nested_loops.cov-map4
-rw-r--r--tests/coverage/overflow.cov-map8
-rw-r--r--tests/coverage/panic_unwind.cov-map4
-rw-r--r--tests/coverage/simple_loop.cov-map4
-rw-r--r--tests/coverage/simple_loop.coverage2
-rw-r--r--tests/coverage/simple_match.cov-map4
-rw-r--r--tests/coverage/simple_match.coverage2
-rw-r--r--tests/coverage/sort_groups.cov-map20
-rw-r--r--tests/coverage/sort_groups.coverage2
-rw-r--r--tests/coverage/unicode.cov-map4
-rw-r--r--tests/coverage/unicode.coverage2
-rw-r--r--tests/coverage/unused.cov-map12
-rw-r--r--tests/coverage/uses_crate.coverage2
-rw-r--r--tests/coverage/uses_inline_crate.cov-map4
-rw-r--r--tests/coverage/uses_inline_crate.coverage4
-rw-r--r--tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff13
-rw-r--r--tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff3
-rw-r--r--tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff11
-rw-r--r--tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff11
-rw-r--r--tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff11
57 files changed, 320 insertions, 305 deletions
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs
index feac97f3e2b..a6e07ea2a60 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs
@@ -1,5 +1,7 @@
 use rustc_middle::mir::coverage::{CounterId, CovTerm, ExpressionId, SourceRegion};
 
+use crate::coverageinfo::mapgen::LocalFileId;
+
 /// Must match the layout of `LLVMRustCounterKind`.
 #[derive(Copy, Clone, Debug)]
 #[repr(C)]
@@ -137,8 +139,12 @@ pub(crate) struct CoverageSpan {
 }
 
 impl CoverageSpan {
-    pub(crate) fn from_source_region(file_id: u32, code_region: &SourceRegion) -> Self {
-        let &SourceRegion { file_name: _, start_line, start_col, end_line, end_col } = code_region;
+    pub(crate) fn from_source_region(
+        local_file_id: LocalFileId,
+        code_region: &SourceRegion,
+    ) -> Self {
+        let file_id = local_file_id.as_u32();
+        let &SourceRegion { start_line, start_col, end_line, end_col } = code_region;
         // Internally, LLVM uses the high bit of `end_col` to distinguish between
         // code regions and gap regions, so it can't be used by the column number.
         assert!(end_col & (1u32 << 31) == 0, "high bit of `end_col` must be unset: {end_col:#X}");
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs
index 5ed640b840e..e3c0df27883 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs
@@ -6,7 +6,6 @@ use rustc_middle::mir::coverage::{
     SourceRegion,
 };
 use rustc_middle::ty::Instance;
-use rustc_span::Symbol;
 use tracing::{debug, instrument};
 
 use crate::coverageinfo::ffi::{Counter, CounterExpression, ExprKind};
@@ -180,7 +179,7 @@ impl<'tcx> FunctionCoverageCollector<'tcx> {
 }
 
 pub(crate) struct FunctionCoverage<'tcx> {
-    function_coverage_info: &'tcx FunctionCoverageInfo,
+    pub(crate) function_coverage_info: &'tcx FunctionCoverageInfo,
     is_used: bool,
 
     counters_seen: BitSet<CounterId>,
@@ -199,11 +198,6 @@ impl<'tcx> FunctionCoverage<'tcx> {
         if self.is_used { self.function_coverage_info.function_source_hash } else { 0 }
     }
 
-    /// Returns an iterator over all filenames used by this function's mappings.
-    pub(crate) fn all_file_names(&self) -> impl Iterator<Item = Symbol> + Captures<'_> {
-        self.function_coverage_info.mappings.iter().map(|mapping| mapping.source_region.file_name)
-    }
-
     /// Convert this function's coverage expression data into a form that can be
     /// passed through FFI to LLVM.
     pub(crate) fn counter_expressions(
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
index bb2f634cb25..b582dd967a7 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -12,8 +12,10 @@ use rustc_index::IndexVec;
 use rustc_middle::mir::coverage::MappingKind;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_middle::{bug, mir};
-use rustc_span::Symbol;
+use rustc_session::RemapFileNameExt;
+use rustc_session::config::RemapPathScopeComponents;
 use rustc_span::def_id::DefIdSet;
+use rustc_span::{Span, Symbol};
 use rustc_target::spec::HasTargetSpec;
 use tracing::debug;
 
@@ -70,8 +72,10 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) {
         .map(|(instance, function_coverage)| (instance, function_coverage.into_finished()))
         .collect::<Vec<_>>();
 
-    let all_file_names =
-        function_coverage_entries.iter().flat_map(|(_, fn_cov)| fn_cov.all_file_names());
+    let all_file_names = function_coverage_entries
+        .iter()
+        .map(|(_, fn_cov)| fn_cov.function_coverage_info.body_span)
+        .map(|span| span_file_name(tcx, span));
     let global_file_table = GlobalFileTable::new(all_file_names);
 
     // Encode all filenames referenced by coverage mappings in this CGU.
@@ -96,7 +100,7 @@ pub(crate) fn finalize(cx: &CodegenCx<'_, '_>) {
         let is_used = function_coverage.is_used();
 
         let coverage_mapping_buffer =
-            encode_mappings_for_function(&global_file_table, &function_coverage);
+            encode_mappings_for_function(tcx, &global_file_table, &function_coverage);
 
         if coverage_mapping_buffer.is_empty() {
             if function_coverage.is_used() {
@@ -164,13 +168,13 @@ impl GlobalFileTable {
         Self { raw_file_table }
     }
 
-    fn global_file_id_for_file_name(&self, file_name: Symbol) -> u32 {
+    fn global_file_id_for_file_name(&self, file_name: Symbol) -> GlobalFileId {
         let raw_id = self.raw_file_table.get_index_of(&file_name).unwrap_or_else(|| {
             bug!("file name not found in prepared global file table: {file_name}");
         });
         // The raw file table doesn't include an entry for the working dir
         // (which has ID 0), so add 1 to get the correct ID.
-        (raw_id + 1) as u32
+        GlobalFileId::from_usize(raw_id + 1)
     }
 
     fn make_filenames_buffer(&self, tcx: TyCtxt<'_>) -> Vec<u8> {
@@ -196,19 +200,27 @@ impl GlobalFileTable {
 }
 
 rustc_index::newtype_index! {
-    struct LocalFileId {}
+    /// An index into the CGU's overall list of file paths. The underlying paths
+    /// will be embedded in the `__llvm_covmap` linker section.
+    struct GlobalFileId {}
+}
+rustc_index::newtype_index! {
+    /// An index into a function's list of global file IDs. That underlying list
+    /// of local-to-global mappings will be embedded in the function's record in
+    /// the `__llvm_covfun` linker section.
+    pub(crate) struct LocalFileId {}
 }
 
 /// Holds a mapping from "local" (per-function) file IDs to "global" (per-CGU)
 /// file IDs.
 #[derive(Default)]
 struct VirtualFileMapping {
-    local_to_global: IndexVec<LocalFileId, u32>,
-    global_to_local: FxIndexMap<u32, LocalFileId>,
+    local_to_global: IndexVec<LocalFileId, GlobalFileId>,
+    global_to_local: FxIndexMap<GlobalFileId, LocalFileId>,
 }
 
 impl VirtualFileMapping {
-    fn local_id_for_global(&mut self, global_file_id: u32) -> LocalFileId {
+    fn local_id_for_global(&mut self, global_file_id: GlobalFileId) -> LocalFileId {
         *self
             .global_to_local
             .entry(global_file_id)
@@ -216,16 +228,26 @@ impl VirtualFileMapping {
     }
 
     fn into_vec(self) -> Vec<u32> {
-        self.local_to_global.raw
+        // This conversion should be optimized away to ~zero overhead.
+        // In any case, it's probably not hot enough to worry about.
+        self.local_to_global.into_iter().map(|global| global.as_u32()).collect()
     }
 }
 
+fn span_file_name(tcx: TyCtxt<'_>, span: Span) -> Symbol {
+    let source_file = tcx.sess.source_map().lookup_source_file(span.lo());
+    let name =
+        source_file.name.for_scope(tcx.sess, RemapPathScopeComponents::MACRO).to_string_lossy();
+    Symbol::intern(&name)
+}
+
 /// Using the expressions and counter regions collected for a single function,
 /// generate the variable-sized payload of its corresponding `__llvm_covfun`
 /// entry. The payload is returned as a vector of bytes.
 ///
 /// Newly-encountered filenames will be added to the global file table.
 fn encode_mappings_for_function(
+    tcx: TyCtxt<'_>,
     global_file_table: &GlobalFileTable,
     function_coverage: &FunctionCoverage<'_>,
 ) -> Vec<u8> {
@@ -242,53 +264,45 @@ fn encode_mappings_for_function(
     let mut mcdc_branch_regions = vec![];
     let mut mcdc_decision_regions = vec![];
 
-    // Group mappings into runs with the same filename, preserving the order
-    // yielded by `FunctionCoverage`.
-    // Prepare file IDs for each filename, and prepare the mapping data so that
-    // we can pass it through FFI to LLVM.
-    for (file_name, counter_regions_for_file) in
-        &counter_regions.group_by(|(_, region)| region.file_name)
-    {
-        // Look up the global file ID for this filename.
-        let global_file_id = global_file_table.global_file_id_for_file_name(file_name);
-
-        // Associate that global file ID with a local file ID for this function.
-        let local_file_id = virtual_file_mapping.local_id_for_global(global_file_id);
-        debug!("  file id: {local_file_id:?} => global {global_file_id} = '{file_name:?}'");
-
-        // For each counter/region pair in this function+file, convert it to a
-        // form suitable for FFI.
-        for (mapping_kind, region) in counter_regions_for_file {
-            debug!("Adding counter {mapping_kind:?} to map for {region:?}");
-            let span = ffi::CoverageSpan::from_source_region(local_file_id.as_u32(), region);
-            match mapping_kind {
-                MappingKind::Code(term) => {
-                    code_regions
-                        .push(ffi::CodeRegion { span, counter: ffi::Counter::from_term(term) });
-                }
-                MappingKind::Branch { true_term, false_term } => {
-                    branch_regions.push(ffi::BranchRegion {
-                        span,
-                        true_counter: ffi::Counter::from_term(true_term),
-                        false_counter: ffi::Counter::from_term(false_term),
-                    });
-                }
-                MappingKind::MCDCBranch { true_term, false_term, mcdc_params } => {
-                    mcdc_branch_regions.push(ffi::MCDCBranchRegion {
-                        span,
-                        true_counter: ffi::Counter::from_term(true_term),
-                        false_counter: ffi::Counter::from_term(false_term),
-                        mcdc_branch_params: ffi::mcdc::BranchParameters::from(mcdc_params),
-                    });
-                }
-                MappingKind::MCDCDecision(mcdc_decision_params) => {
-                    mcdc_decision_regions.push(ffi::MCDCDecisionRegion {
-                        span,
-                        mcdc_decision_params: ffi::mcdc::DecisionParameters::from(
-                            mcdc_decision_params,
-                        ),
-                    });
-                }
+    // Currently a function's mappings must all be in the same file as its body span.
+    let file_name = span_file_name(tcx, function_coverage.function_coverage_info.body_span);
+
+    // Look up the global file ID for that filename.
+    let global_file_id = global_file_table.global_file_id_for_file_name(file_name);
+
+    // Associate that global file ID with a local file ID for this function.
+    let local_file_id = virtual_file_mapping.local_id_for_global(global_file_id);
+    debug!("  file id: {local_file_id:?} => {global_file_id:?} = '{file_name:?}'");
+
+    // For each counter/region pair in this function+file, convert it to a
+    // form suitable for FFI.
+    for (mapping_kind, region) in counter_regions {
+        debug!("Adding counter {mapping_kind:?} to map for {region:?}");
+        let span = ffi::CoverageSpan::from_source_region(local_file_id, region);
+        match mapping_kind {
+            MappingKind::Code(term) => {
+                code_regions.push(ffi::CodeRegion { span, counter: ffi::Counter::from_term(term) });
+            }
+            MappingKind::Branch { true_term, false_term } => {
+                branch_regions.push(ffi::BranchRegion {
+                    span,
+                    true_counter: ffi::Counter::from_term(true_term),
+                    false_counter: ffi::Counter::from_term(false_term),
+                });
+            }
+            MappingKind::MCDCBranch { true_term, false_term, mcdc_params } => {
+                mcdc_branch_regions.push(ffi::MCDCBranchRegion {
+                    span,
+                    true_counter: ffi::Counter::from_term(true_term),
+                    false_counter: ffi::Counter::from_term(false_term),
+                    mcdc_branch_params: ffi::mcdc::BranchParameters::from(mcdc_params),
+                });
+            }
+            MappingKind::MCDCDecision(mcdc_decision_params) => {
+                mcdc_decision_regions.push(ffi::MCDCDecisionRegion {
+                    span,
+                    mcdc_decision_params: ffi::mcdc::DecisionParameters::from(mcdc_decision_params),
+                });
             }
         }
     }
diff --git a/compiler/rustc_middle/src/mir/coverage.rs b/compiler/rustc_middle/src/mir/coverage.rs
index 4a876dc1228..11a4e7f89a7 100644
--- a/compiler/rustc_middle/src/mir/coverage.rs
+++ b/compiler/rustc_middle/src/mir/coverage.rs
@@ -4,7 +4,7 @@ use std::fmt::{self, Debug, Formatter};
 
 use rustc_index::IndexVec;
 use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable};
-use rustc_span::{Span, Symbol};
+use rustc_span::Span;
 
 rustc_index::newtype_index! {
     /// Used by [`CoverageKind::BlockMarker`] to mark blocks during THIR-to-MIR
@@ -158,7 +158,6 @@ impl Debug for CoverageKind {
 #[derive(Clone, TyEncodable, TyDecodable, Hash, HashStable, PartialEq, Eq, PartialOrd, Ord)]
 #[derive(TypeFoldable, TypeVisitable)]
 pub struct SourceRegion {
-    pub file_name: Symbol,
     pub start_line: u32,
     pub start_col: u32,
     pub end_line: u32,
@@ -167,11 +166,8 @@ pub struct SourceRegion {
 
 impl Debug for SourceRegion {
     fn fmt(&self, fmt: &mut Formatter<'_>) -> fmt::Result {
-        write!(
-            fmt,
-            "{}:{}:{} - {}:{}",
-            self.file_name, self.start_line, self.start_col, self.end_line, self.end_col
-        )
+        let &Self { start_line, start_col, end_line, end_col } = self;
+        write!(fmt, "{start_line}:{start_col} - {end_line}:{end_col}")
     }
 }
 
@@ -246,6 +242,7 @@ pub struct Mapping {
 #[derive(TyEncodable, TyDecodable, Hash, HashStable, TypeFoldable, TypeVisitable)]
 pub struct FunctionCoverageInfo {
     pub function_source_hash: u64,
+    pub body_span: Span,
     pub num_counters: usize,
     pub mcdc_bitmap_bits: usize,
     pub expressions: IndexVec<ExpressionId, Expression>,
diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs
index d0f93c19e44..f0e2b7a376c 100644
--- a/compiler/rustc_middle/src/mir/pretty.rs
+++ b/compiler/rustc_middle/src/mir/pretty.rs
@@ -596,8 +596,10 @@ fn write_function_coverage_info(
     function_coverage_info: &coverage::FunctionCoverageInfo,
     w: &mut dyn io::Write,
 ) -> io::Result<()> {
-    let coverage::FunctionCoverageInfo { expressions, mappings, .. } = function_coverage_info;
+    let coverage::FunctionCoverageInfo { body_span, expressions, mappings, .. } =
+        function_coverage_info;
 
+    writeln!(w, "{INDENT}coverage body span: {body_span:?}")?;
     for (id, expression) in expressions.iter_enumerated() {
         writeln!(w, "{INDENT}coverage {id:?} => {expression:?};")?;
     }
diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs
index 2e4c503f3ce..e8b3d80be02 100644
--- a/compiler/rustc_mir_transform/src/coverage/mod.rs
+++ b/compiler/rustc_mir_transform/src/coverage/mod.rs
@@ -22,8 +22,8 @@ use rustc_middle::mir::{
 use rustc_middle::ty::TyCtxt;
 use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::SourceMap;
-use rustc_span::{BytePos, Pos, RelativeBytePos, Span, Symbol};
-use tracing::{debug, debug_span, instrument, trace};
+use rustc_span::{BytePos, Pos, SourceFile, Span};
+use tracing::{debug, debug_span, trace};
 
 use crate::coverage::counters::{CounterIncrementSite, CoverageCounters};
 use crate::coverage::graph::CoverageGraph;
@@ -122,6 +122,7 @@ fn instrument_function_for_coverage<'tcx>(tcx: TyCtxt<'tcx>, mir_body: &mut mir:
 
     mir_body.function_coverage_info = Some(Box::new(FunctionCoverageInfo {
         function_source_hash: hir_info.function_source_hash,
+        body_span: hir_info.body_span,
         num_counters: coverage_counters.num_counters(),
         mcdc_bitmap_bits: extracted_mappings.mcdc_bitmap_bits,
         expressions: coverage_counters.into_expressions(),
@@ -142,19 +143,11 @@ fn create_mappings<'tcx>(
     coverage_counters: &CoverageCounters,
 ) -> Vec<Mapping> {
     let source_map = tcx.sess.source_map();
-    let body_span = hir_info.body_span;
-
-    let source_file = source_map.lookup_source_file(body_span.lo());
-
-    use rustc_session::RemapFileNameExt;
-    use rustc_session::config::RemapPathScopeComponents;
-    let file_name = Symbol::intern(
-        &source_file.name.for_scope(tcx.sess, RemapPathScopeComponents::MACRO).to_string_lossy(),
-    );
+    let file = source_map.lookup_source_file(hir_info.body_span.lo());
 
     let term_for_bcb =
         |bcb| coverage_counters.term_for_bcb(bcb).expect("all BCBs with spans were given counters");
-    let region_for_span = |span: Span| make_source_region(source_map, file_name, span, body_span);
+    let region_for_span = |span: Span| make_source_region(source_map, hir_info, &file, span);
 
     // Fully destructure the mappings struct to make sure we don't miss any kinds.
     let ExtractedMappings {
@@ -398,7 +391,42 @@ fn inject_statement(mir_body: &mut mir::Body<'_>, counter_kind: CoverageKind, bb
     data.statements.insert(0, statement);
 }
 
-/// Convert the Span into its file name, start line and column, and end line and column.
+fn ensure_non_empty_span(
+    source_map: &SourceMap,
+    hir_info: &ExtractedHirInfo,
+    span: Span,
+) -> Option<Span> {
+    if !span.is_empty() {
+        return Some(span);
+    }
+
+    let lo = span.lo();
+    let hi = span.hi();
+
+    // The span is empty, so try to expand it to cover an adjacent '{' or '}',
+    // but only within the bounds of the body span.
+    let try_next = hi < hir_info.body_span.hi();
+    let try_prev = hir_info.body_span.lo() < lo;
+    if !(try_next || try_prev) {
+        return None;
+    }
+
+    source_map
+        .span_to_source(span, |src, start, end| try {
+            // We're only checking for specific ASCII characters, so we don't
+            // have to worry about multi-byte code points.
+            if try_next && src.as_bytes()[end] == b'{' {
+                Some(span.with_hi(hi + BytePos(1)))
+            } else if try_prev && src.as_bytes()[start - 1] == b'}' {
+                Some(span.with_lo(lo - BytePos(1)))
+            } else {
+                None
+            }
+        })
+        .ok()?
+}
+
+/// Converts the span into its start line and column, and end line and column.
 ///
 /// Line numbers and column numbers are 1-based. Unlike most column numbers emitted by
 /// the compiler, these column numbers are denoted in **bytes**, because that's what
@@ -408,56 +436,29 @@ fn inject_statement(mir_body: &mut mir::Body<'_>, counter_kind: CoverageKind, bb
 /// but it's hard to rule out entirely (especially in the presence of complex macros
 /// or other expansions), and if it does happen then skipping a span or function is
 /// better than an ICE or `llvm-cov` failure that the user might have no way to avoid.
-#[instrument(level = "debug", skip(source_map))]
 fn make_source_region(
     source_map: &SourceMap,
-    file_name: Symbol,
+    hir_info: &ExtractedHirInfo,
+    file: &SourceFile,
     span: Span,
-    body_span: Span,
 ) -> Option<SourceRegion> {
+    let span = ensure_non_empty_span(source_map, hir_info, span)?;
+
     let lo = span.lo();
     let hi = span.hi();
 
-    let file = source_map.lookup_source_file(lo);
-    if !file.contains(hi) {
-        debug!(?span, ?file, ?lo, ?hi, "span crosses multiple files; skipping");
-        return None;
-    }
-
     // Column numbers need to be in bytes, so we can't use the more convenient
     // `SourceMap` methods for looking up file coordinates.
-    let rpos_and_line_and_byte_column = |pos: BytePos| -> Option<(RelativeBytePos, usize, usize)> {
+    let line_and_byte_column = |pos: BytePos| -> Option<(usize, usize)> {
         let rpos = file.relative_position(pos);
         let line_index = file.lookup_line(rpos)?;
         let line_start = file.lines()[line_index];
         // Line numbers and column numbers are 1-based, so add 1 to each.
-        Some((rpos, line_index + 1, (rpos - line_start).to_usize() + 1))
+        Some((line_index + 1, (rpos - line_start).to_usize() + 1))
     };
 
-    let (lo_rpos, mut start_line, mut start_col) = rpos_and_line_and_byte_column(lo)?;
-    let (hi_rpos, mut end_line, mut end_col) = rpos_and_line_and_byte_column(hi)?;
-
-    // If the span is empty, try to expand it horizontally by one character's
-    // worth of bytes, so that it is more visible in `llvm-cov` reports.
-    // We do this after resolving line/column numbers, so that empty spans at the
-    // end of a line get an extra column instead of wrapping to the next line.
-    if span.is_empty()
-        && body_span.contains(span)
-        && let Some(src) = &file.src
-    {
-        // Prefer to expand the end position, if it won't go outside the body span.
-        if hi < body_span.hi() {
-            let hi_rpos = hi_rpos.to_usize();
-            let nudge_bytes = src.ceil_char_boundary(hi_rpos + 1) - hi_rpos;
-            end_col += nudge_bytes;
-        } else if lo > body_span.lo() {
-            let lo_rpos = lo_rpos.to_usize();
-            let nudge_bytes = lo_rpos - src.floor_char_boundary(lo_rpos - 1);
-            // Subtract the nudge, but don't go below column 1.
-            start_col = start_col.saturating_sub(nudge_bytes).max(1);
-        }
-        // If neither nudge could be applied, stick with the empty span coordinates.
-    }
+    let (mut start_line, start_col) = line_and_byte_column(lo)?;
+    let (mut end_line, end_col) = line_and_byte_column(hi)?;
 
     // Apply an offset so that code in doctests has correct line numbers.
     // FIXME(#79417): Currently we have no way to offset doctest _columns_.
@@ -465,7 +466,6 @@ fn make_source_region(
     end_line = source_map.doctest_offset_line(&file.name, end_line);
 
     check_source_region(SourceRegion {
-        file_name,
         start_line: start_line as u32,
         start_col: start_col as u32,
         end_line: end_line as u32,
@@ -478,7 +478,7 @@ fn make_source_region(
 /// discard regions that are improperly ordered, or might be interpreted in a
 /// way that makes them improperly ordered.
 fn check_source_region(source_region: SourceRegion) -> Option<SourceRegion> {
-    let SourceRegion { file_name: _, start_line, start_col, end_line, end_col } = source_region;
+    let SourceRegion { start_line, start_col, end_line, end_col } = source_region;
 
     // Line/column coordinates are supposed to be 1-based. If we ever emit
     // coordinates of 0, `llvm-cov` might misinterpret them.
diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs
index d184328748f..e18f66ac0a3 100644
--- a/compiler/rustc_mir_transform/src/lib.rs
+++ b/compiler/rustc_mir_transform/src/lib.rs
@@ -9,7 +9,6 @@
 #![feature(let_chains)]
 #![feature(map_try_insert)]
 #![feature(never_type)]
-#![feature(round_char_boundary)]
 #![feature(try_blocks)]
 #![feature(yeet_expr)]
 #![warn(unreachable_pub)]
diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs
index f36bb38623e..e74a5c2d8fe 100644
--- a/compiler/rustc_span/src/source_map.rs
+++ b/compiler/rustc_span/src/source_map.rs
@@ -534,7 +534,7 @@ impl SourceMap {
     /// Extracts the source surrounding the given `Span` using the `extract_source` function. The
     /// extract function takes three arguments: a string slice containing the source, an index in
     /// the slice for the beginning of the span and an index in the slice for the end of the span.
-    fn span_to_source<F, T>(&self, sp: Span, extract_source: F) -> Result<T, SpanSnippetError>
+    pub fn span_to_source<F, T>(&self, sp: Span, extract_source: F) -> Result<T, SpanSnippetError>
     where
         F: Fn(&str, usize, usize) -> Result<T, SpanSnippetError>,
     {
diff --git a/tests/coverage-run-rustdoc/doctest.coverage b/tests/coverage-run-rustdoc/doctest.coverage
index 396811c5487..f007eb0cade 100644
--- a/tests/coverage-run-rustdoc/doctest.coverage
+++ b/tests/coverage-run-rustdoc/doctest.coverage
@@ -45,11 +45,11 @@ $DIR/doctest.rs:
    LL|      1|//!     if *res.as_ref().unwrap_err() == *res.as_ref().unwrap_err() {
    LL|      1|//!         println!("{:?}", res);
    LL|      1|//!     }
-                   ^0
+                  ^0
    LL|      1|//!     if *res.as_ref().unwrap_err() == *res.as_ref().unwrap_err() {
    LL|      1|//!         res = Ok(1);
    LL|      1|//!     }
-                   ^0
+                  ^0
    LL|      1|//!     res = Ok(0);
    LL|       |//! }
    LL|       |//! // need to be explicit because rustdoc cant infer the return type
diff --git a/tests/coverage/abort.cov-map b/tests/coverage/abort.cov-map
index 06dce43c3ca..c121fa551dc 100644
--- a/tests/coverage/abort.cov-map
+++ b/tests/coverage/abort.cov-map
@@ -1,5 +1,5 @@
 Function name: abort::main
-Raw bytes (89): 0x[01, 01, 0a, 01, 27, 05, 09, 03, 0d, 22, 11, 03, 0d, 03, 0d, 22, 15, 03, 0d, 03, 0d, 05, 09, 0d, 01, 0d, 01, 01, 1b, 03, 02, 0b, 00, 18, 22, 01, 0c, 00, 19, 11, 00, 1a, 02, 0a, 0e, 02, 0a, 00, 0b, 22, 02, 0c, 00, 19, 15, 00, 1a, 00, 31, 1a, 00, 31, 00, 32, 22, 04, 0c, 00, 19, 05, 00, 1a, 00, 31, 09, 00, 31, 00, 32, 27, 01, 09, 00, 17, 0d, 02, 05, 01, 02]
+Raw bytes (89): 0x[01, 01, 0a, 01, 27, 05, 09, 03, 0d, 22, 11, 03, 0d, 03, 0d, 22, 15, 03, 0d, 03, 0d, 05, 09, 0d, 01, 0d, 01, 01, 1b, 03, 02, 0b, 00, 18, 22, 01, 0c, 00, 19, 11, 00, 1a, 02, 0a, 0e, 02, 09, 00, 0a, 22, 02, 0c, 00, 19, 15, 00, 1a, 00, 31, 1a, 00, 30, 00, 31, 22, 04, 0c, 00, 19, 05, 00, 1a, 00, 31, 09, 00, 30, 00, 31, 27, 01, 09, 00, 17, 0d, 02, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 10
@@ -20,17 +20,17 @@ Number of file 0 mappings: 13
 - Code(Expression(8, Sub)) at (prev + 1, 12) to (start + 0, 25)
     = ((c0 + (c1 + c2)) - c3)
 - Code(Counter(4)) at (prev + 0, 26) to (start + 2, 10)
-- Code(Expression(3, Sub)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Expression(3, Sub)) at (prev + 2, 9) to (start + 0, 10)
     = (((c0 + (c1 + c2)) - c3) - c4)
 - Code(Expression(8, Sub)) at (prev + 2, 12) to (start + 0, 25)
     = ((c0 + (c1 + c2)) - c3)
 - Code(Counter(5)) at (prev + 0, 26) to (start + 0, 49)
-- Code(Expression(6, Sub)) at (prev + 0, 49) to (start + 0, 50)
+- Code(Expression(6, Sub)) at (prev + 0, 48) to (start + 0, 49)
     = (((c0 + (c1 + c2)) - c3) - c5)
 - Code(Expression(8, Sub)) at (prev + 4, 12) to (start + 0, 25)
     = ((c0 + (c1 + c2)) - c3)
 - Code(Counter(1)) at (prev + 0, 26) to (start + 0, 49)
-- Code(Counter(2)) at (prev + 0, 49) to (start + 0, 50)
+- Code(Counter(2)) at (prev + 0, 48) to (start + 0, 49)
 - Code(Expression(9, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (c1 + c2)
 - Code(Counter(3)) at (prev + 2, 5) to (start + 1, 2)
diff --git a/tests/coverage/abort.coverage b/tests/coverage/abort.coverage
index 29e3ad5eda7..be3dadab487 100644
--- a/tests/coverage/abort.coverage
+++ b/tests/coverage/abort.coverage
@@ -18,12 +18,12 @@
    LL|      6|        }
    LL|       |        // See discussion (below the `Notes` section) on coverage results for the closing brace.
    LL|     10|        if countdown < 5 { might_abort(false); } // Counts for different regions on one line.
-                                       ^4                     ^6
+                                       ^4                    ^6
    LL|       |        // For the following example, the closing brace is the last character on the line.
    LL|       |        // This shows the character after the closing brace is highlighted, even if that next
    LL|       |        // character is a newline.
    LL|     10|        if countdown < 5 { might_abort(false); }
-                                       ^4                     ^6
+                                       ^4                    ^6
    LL|     10|        countdown -= 1;
    LL|       |    }
    LL|      1|    Ok(())
diff --git a/tests/coverage/assert.cov-map b/tests/coverage/assert.cov-map
index 018fcc2c3db..b3cec390119 100644
--- a/tests/coverage/assert.cov-map
+++ b/tests/coverage/assert.cov-map
@@ -1,5 +1,5 @@
 Function name: assert::main
-Raw bytes (65): 0x[01, 01, 08, 01, 1b, 05, 1f, 09, 0d, 03, 11, 16, 05, 03, 11, 05, 1f, 09, 0d, 09, 01, 09, 01, 01, 1b, 03, 02, 0b, 00, 18, 16, 01, 0c, 00, 1a, 05, 00, 1b, 02, 0a, 12, 02, 13, 00, 20, 09, 00, 21, 02, 0a, 0d, 02, 0a, 00, 0b, 1b, 01, 09, 00, 17, 11, 02, 05, 01, 02]
+Raw bytes (65): 0x[01, 01, 08, 01, 1b, 05, 1f, 09, 0d, 03, 11, 16, 05, 03, 11, 05, 1f, 09, 0d, 09, 01, 09, 01, 01, 1b, 03, 02, 0b, 00, 18, 16, 01, 0c, 00, 1a, 05, 00, 1b, 02, 0a, 12, 02, 13, 00, 20, 09, 00, 21, 02, 0a, 0d, 02, 09, 00, 0a, 1b, 01, 09, 00, 17, 11, 02, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -21,7 +21,7 @@ Number of file 0 mappings: 9
 - Code(Expression(4, Sub)) at (prev + 2, 19) to (start + 0, 32)
     = (((c0 + (c1 + (c2 + c3))) - c4) - c1)
 - Code(Counter(2)) at (prev + 0, 33) to (start + 2, 10)
-- Code(Counter(3)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Counter(3)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(6, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (c1 + (c2 + c3))
 - Code(Counter(4)) at (prev + 2, 5) to (start + 1, 2)
diff --git a/tests/coverage/async2.cov-map b/tests/coverage/async2.cov-map
index ed61e91efc2..d6462fded13 100644
--- a/tests/coverage/async2.cov-map
+++ b/tests/coverage/async2.cov-map
@@ -8,14 +8,14 @@ Number of file 0 mappings: 1
 Highest counter ID seen: c0
 
 Function name: async2::async_func::{closure#0}
-Raw bytes (24): 0x[01, 01, 00, 04, 01, 10, 17, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 01, 10, 17, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 16, 23) to (start + 3, 9)
 - Code(Counter(1)) at (prev + 3, 10) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
@@ -47,14 +47,14 @@ Number of file 0 mappings: 1
 Highest counter ID seen: c0
 
 Function name: async2::non_async_func
-Raw bytes (24): 0x[01, 01, 00, 04, 01, 08, 01, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 01, 08, 01, 03, 09, 05, 03, 0a, 02, 06, 00, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 8, 1) to (start + 3, 9)
 - Code(Counter(1)) at (prev + 3, 10) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
diff --git a/tests/coverage/async2.coverage b/tests/coverage/async2.coverage
index ed9bc4c239d..cdc171180b8 100644
--- a/tests/coverage/async2.coverage
+++ b/tests/coverage/async2.coverage
@@ -11,7 +11,7 @@
    LL|      1|    if b {
    LL|      1|        println!("non_async_func println in block");
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|}
    LL|       |
    LL|      1|async fn async_func() {
@@ -20,7 +20,7 @@
    LL|      1|    if b {
    LL|      1|        println!("async_func println in block");
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|}
    LL|       |
    LL|      1|async fn async_func_just_println() {
diff --git a/tests/coverage/branch/if.cov-map b/tests/coverage/branch/if.cov-map
index 4a8cb664dd8..0ad78a720a7 100644
--- a/tests/coverage/branch/if.cov-map
+++ b/tests/coverage/branch/if.cov-map
@@ -25,7 +25,7 @@ Number of file 0 mappings: 8
 Highest counter ID seen: c4
 
 Function name: if::branch_not
-Raw bytes (116): 0x[01, 01, 07, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 05, 15, 05, 15, 12, 01, 0c, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 09, 01, 09, 00, 11, 02, 01, 06, 00, 07, 05, 01, 08, 00, 0a, 20, 0a, 0d, 00, 08, 00, 0a, 0a, 00, 0b, 02, 06, 0d, 02, 06, 00, 07, 05, 01, 08, 00, 0b, 20, 11, 12, 00, 08, 00, 0b, 11, 00, 0c, 02, 06, 12, 02, 06, 00, 07, 05, 01, 08, 00, 0c, 20, 1a, 15, 00, 08, 00, 0c, 1a, 00, 0d, 02, 06, 15, 02, 06, 00, 07, 05, 01, 01, 00, 02]
+Raw bytes (116): 0x[01, 01, 07, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 05, 15, 05, 15, 12, 01, 0c, 01, 01, 10, 05, 03, 08, 00, 09, 20, 09, 02, 00, 08, 00, 09, 09, 01, 09, 00, 11, 02, 01, 05, 00, 06, 05, 01, 08, 00, 0a, 20, 0a, 0d, 00, 08, 00, 0a, 0a, 00, 0b, 02, 06, 0d, 02, 05, 00, 06, 05, 01, 08, 00, 0b, 20, 11, 12, 00, 08, 00, 0b, 11, 00, 0c, 02, 06, 12, 02, 05, 00, 06, 05, 01, 08, 00, 0c, 20, 1a, 15, 00, 08, 00, 0c, 1a, 00, 0d, 02, 06, 15, 02, 05, 00, 06, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 7
@@ -43,7 +43,7 @@ Number of file 0 mappings: 18
     true  = c2
     false = (c1 - c2)
 - Code(Counter(2)) at (prev + 1, 9) to (start + 0, 17)
-- Code(Expression(0, Sub)) at (prev + 1, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 1, 5) to (start + 0, 6)
     = (c1 - c2)
 - Code(Counter(1)) at (prev + 1, 8) to (start + 0, 10)
 - Branch { true: Expression(2, Sub), false: Counter(3) } at (prev + 0, 8) to (start + 0, 10)
@@ -51,13 +51,13 @@ Number of file 0 mappings: 18
     false = c3
 - Code(Expression(2, Sub)) at (prev + 0, 11) to (start + 2, 6)
     = (c1 - c3)
-- Code(Counter(3)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(3)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(1)) at (prev + 1, 8) to (start + 0, 11)
 - Branch { true: Counter(4), false: Expression(4, Sub) } at (prev + 0, 8) to (start + 0, 11)
     true  = c4
     false = (c1 - c4)
 - Code(Counter(4)) at (prev + 0, 12) to (start + 2, 6)
-- Code(Expression(4, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(4, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c1 - c4)
 - Code(Counter(1)) at (prev + 1, 8) to (start + 0, 12)
 - Branch { true: Expression(6, Sub), false: Counter(5) } at (prev + 0, 8) to (start + 0, 12)
@@ -65,12 +65,12 @@ Number of file 0 mappings: 18
     false = c5
 - Code(Expression(6, Sub)) at (prev + 0, 13) to (start + 2, 6)
     = (c1 - c5)
-- Code(Counter(5)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(5)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(1)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c5
 
 Function name: if::branch_not_as
-Raw bytes (90): 0x[01, 01, 05, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 0e, 01, 1d, 01, 01, 10, 05, 03, 08, 00, 14, 20, 02, 09, 00, 08, 00, 14, 02, 00, 15, 02, 06, 09, 02, 06, 00, 07, 05, 01, 08, 00, 15, 20, 0d, 0a, 00, 08, 00, 15, 0d, 00, 16, 02, 06, 0a, 02, 06, 00, 07, 05, 01, 08, 00, 16, 20, 12, 11, 00, 08, 00, 16, 12, 00, 17, 02, 06, 11, 02, 06, 00, 07, 05, 01, 01, 00, 02]
+Raw bytes (90): 0x[01, 01, 05, 05, 09, 05, 0d, 05, 0d, 05, 11, 05, 11, 0e, 01, 1d, 01, 01, 10, 05, 03, 08, 00, 14, 20, 02, 09, 00, 08, 00, 14, 02, 00, 15, 02, 06, 09, 02, 05, 00, 06, 05, 01, 08, 00, 15, 20, 0d, 0a, 00, 08, 00, 15, 0d, 00, 16, 02, 06, 0a, 02, 05, 00, 06, 05, 01, 08, 00, 16, 20, 12, 11, 00, 08, 00, 16, 12, 00, 17, 02, 06, 11, 02, 05, 00, 06, 05, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 5
@@ -87,13 +87,13 @@ Number of file 0 mappings: 14
     false = c2
 - Code(Expression(0, Sub)) at (prev + 0, 21) to (start + 2, 6)
     = (c1 - c2)
-- Code(Counter(2)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(2)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(1)) at (prev + 1, 8) to (start + 0, 21)
 - Branch { true: Counter(3), false: Expression(2, Sub) } at (prev + 0, 8) to (start + 0, 21)
     true  = c3
     false = (c1 - c3)
 - Code(Counter(3)) at (prev + 0, 22) to (start + 2, 6)
-- Code(Expression(2, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(2, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c1 - c3)
 - Code(Counter(1)) at (prev + 1, 8) to (start + 0, 22)
 - Branch { true: Expression(4, Sub), false: Counter(4) } at (prev + 0, 8) to (start + 0, 22)
@@ -101,7 +101,7 @@ Number of file 0 mappings: 14
     false = c4
 - Code(Expression(4, Sub)) at (prev + 0, 23) to (start + 2, 6)
     = (c1 - c4)
-- Code(Counter(4)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(4)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(1)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c4
 
diff --git a/tests/coverage/branch/if.coverage b/tests/coverage/branch/if.coverage
index 2a9a408b16a..3d107188ca6 100644
--- a/tests/coverage/branch/if.coverage
+++ b/tests/coverage/branch/if.coverage
@@ -30,7 +30,7 @@
   ------------------
    LL|      2|        say("not not a");
    LL|      2|    }
-                   ^1
+                  ^1
    LL|      3|    if !!!a {
   ------------------
   |  Branch (LL:8): [True: 1, False: 2]
@@ -54,7 +54,7 @@
   ------------------
    LL|      2|        say("not not (a as bool)");
    LL|      2|    }
-                   ^1
+                  ^1
    LL|      3|    if !!!(a as bool) {
   ------------------
   |  Branch (LL:8): [True: 1, False: 2]
diff --git a/tests/coverage/closure.cov-map b/tests/coverage/closure.cov-map
index d50f9f8e7af..adf4aba0c23 100644
--- a/tests/coverage/closure.cov-map
+++ b/tests/coverage/closure.cov-map
@@ -1,5 +1,5 @@
 Function name: closure::main
-Raw bytes (126): 0x[01, 01, 01, 01, 05, 18, 01, 09, 01, 0f, 0d, 01, 16, 0e, 06, 0a, 01, 10, 05, 13, 0d, 01, 1a, 0e, 06, 0a, 01, 10, 05, 0c, 16, 01, 16, 05, 0d, 18, 01, 19, 09, 01, 1e, 01, 04, 09, 00, 29, 01, 01, 09, 00, 2d, 01, 01, 09, 00, 24, 01, 05, 09, 00, 24, 01, 02, 09, 00, 21, 01, 04, 09, 00, 21, 01, 04, 09, 00, 28, 01, 09, 09, 00, 32, 01, 04, 09, 00, 33, 01, 07, 09, 00, 4b, 01, 08, 09, 00, 48, 01, 0a, 09, 00, 47, 01, 08, 09, 00, 44, 01, 0a, 08, 00, 10, 05, 00, 11, 04, 06, 02, 04, 06, 00, 07, 01, 01, 05, 03, 02]
+Raw bytes (126): 0x[01, 01, 01, 01, 05, 18, 01, 09, 01, 0f, 0d, 01, 16, 0e, 06, 0a, 01, 10, 05, 13, 0d, 01, 1a, 0e, 06, 0a, 01, 10, 05, 0c, 16, 01, 16, 05, 0d, 18, 01, 19, 09, 01, 1e, 01, 04, 09, 00, 29, 01, 01, 09, 00, 2d, 01, 01, 09, 00, 24, 01, 05, 09, 00, 24, 01, 02, 09, 00, 21, 01, 04, 09, 00, 21, 01, 04, 09, 00, 28, 01, 09, 09, 00, 32, 01, 04, 09, 00, 33, 01, 07, 09, 00, 4b, 01, 08, 09, 00, 48, 01, 0a, 09, 00, 47, 01, 08, 09, 00, 44, 01, 0a, 08, 00, 10, 05, 00, 11, 04, 06, 02, 04, 05, 00, 06, 01, 01, 05, 03, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -27,13 +27,13 @@ Number of file 0 mappings: 24
 - Code(Counter(0)) at (prev + 8, 9) to (start + 0, 68)
 - Code(Counter(0)) at (prev + 10, 8) to (start + 0, 16)
 - Code(Counter(1)) at (prev + 0, 17) to (start + 4, 6)
-- Code(Expression(0, Sub)) at (prev + 4, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 4, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 5) to (start + 3, 2)
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#0}
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 28, 05, 02, 14, 05, 02, 15, 02, 0a, 02, 02, 0a, 00, 0b, 01, 01, 09, 01, 06]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 28, 05, 02, 14, 05, 02, 15, 02, 0a, 02, 02, 09, 00, 0a, 01, 01, 09, 01, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -41,7 +41,7 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 40, 5) to (start + 2, 20)
 - Code(Counter(1)) at (prev + 2, 21) to (start + 2, 10)
-- Code(Expression(0, Sub)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Expression(0, Sub)) at (prev + 2, 9) to (start + 0, 10)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 1, 6)
 Highest counter ID seen: c1
@@ -83,17 +83,16 @@ Number of file 0 mappings: 1
 Highest counter ID seen: (none)
 
 Function name: closure::main::{closure#14}
-Raw bytes (27): 0x[01, 01, 01, 01, 05, 04, 01, b3, 01, 0d, 02, 1b, 05, 02, 1e, 00, 25, 02, 00, 2f, 00, 33, 01, 01, 0d, 00, 0e]
+Raw bytes (22): 0x[01, 01, 01, 01, 05, 03, 01, b3, 01, 0d, 02, 1b, 05, 02, 1e, 00, 25, 02, 00, 2f, 00, 33]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
-Number of file 0 mappings: 4
+Number of file 0 mappings: 3
 - Code(Counter(0)) at (prev + 179, 13) to (start + 2, 27)
 - Code(Counter(1)) at (prev + 2, 30) to (start + 0, 37)
 - Code(Expression(0, Sub)) at (prev + 0, 47) to (start + 0, 51)
     = (c0 - c1)
-- Code(Counter(0)) at (prev + 1, 13) to (start + 0, 14)
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#15}
@@ -113,17 +112,16 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#16}
-Raw bytes (27): 0x[01, 01, 01, 01, 05, 04, 01, c5, 01, 0d, 02, 1b, 05, 02, 1e, 00, 25, 02, 00, 2f, 00, 33, 01, 01, 0d, 00, 0e]
+Raw bytes (22): 0x[01, 01, 01, 01, 05, 03, 01, c5, 01, 0d, 02, 1b, 05, 02, 1e, 00, 25, 02, 00, 2f, 00, 33]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
 - expression 0 operands: lhs = Counter(0), rhs = Counter(1)
-Number of file 0 mappings: 4
+Number of file 0 mappings: 3
 - Code(Counter(0)) at (prev + 197, 13) to (start + 2, 27)
 - Code(Counter(1)) at (prev + 2, 30) to (start + 0, 37)
 - Code(Expression(0, Sub)) at (prev + 0, 47) to (start + 0, 51)
     = (c0 - c1)
-- Code(Counter(0)) at (prev + 1, 13) to (start + 0, 14)
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#17}
@@ -143,19 +141,19 @@ Number of file 0 mappings: 6
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#18} (unused)
-Raw bytes (24): 0x[01, 01, 00, 04, 00, 19, 0d, 02, 1c, 00, 02, 1d, 02, 12, 00, 02, 12, 00, 13, 00, 01, 11, 01, 0e]
+Raw bytes (24): 0x[01, 01, 00, 04, 00, 19, 0d, 02, 1c, 00, 02, 1d, 02, 12, 00, 02, 11, 00, 12, 00, 01, 11, 01, 0e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 25, 13) to (start + 2, 28)
 - Code(Zero) at (prev + 2, 29) to (start + 2, 18)
-- Code(Zero) at (prev + 2, 18) to (start + 0, 19)
+- Code(Zero) at (prev + 2, 17) to (start + 0, 18)
 - Code(Zero) at (prev + 1, 17) to (start + 1, 14)
 Highest counter ID seen: (none)
 
 Function name: closure::main::{closure#19}
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 43, 0d, 02, 1c, 05, 02, 1d, 02, 12, 02, 02, 12, 00, 13, 01, 01, 11, 01, 0e]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 43, 0d, 02, 1c, 05, 02, 1d, 02, 12, 02, 02, 11, 00, 12, 01, 01, 11, 01, 0e]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -163,13 +161,13 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 67, 13) to (start + 2, 28)
 - Code(Counter(1)) at (prev + 2, 29) to (start + 2, 18)
-- Code(Expression(0, Sub)) at (prev + 2, 18) to (start + 0, 19)
+- Code(Expression(0, Sub)) at (prev + 2, 17) to (start + 0, 18)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 17) to (start + 1, 14)
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#1}
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 52, 05, 02, 14, 05, 02, 15, 02, 0a, 02, 02, 0a, 00, 0b, 01, 01, 09, 01, 06]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 52, 05, 02, 14, 05, 02, 15, 02, 0a, 02, 02, 09, 00, 0a, 01, 01, 09, 01, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -177,13 +175,13 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 82, 5) to (start + 2, 20)
 - Code(Counter(1)) at (prev + 2, 21) to (start + 2, 10)
-- Code(Expression(0, Sub)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Expression(0, Sub)) at (prev + 2, 9) to (start + 0, 10)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 1, 6)
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#2}
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 68, 05, 02, 14, 05, 02, 15, 02, 0a, 02, 02, 0a, 00, 0b, 01, 01, 09, 01, 06]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 68, 05, 02, 14, 05, 02, 15, 02, 0a, 02, 02, 09, 00, 0a, 01, 01, 09, 01, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -191,20 +189,20 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 104, 5) to (start + 2, 20)
 - Code(Counter(1)) at (prev + 2, 21) to (start + 2, 10)
-- Code(Expression(0, Sub)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Expression(0, Sub)) at (prev + 2, 9) to (start + 0, 10)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 1, 6)
 Highest counter ID seen: c1
 
 Function name: closure::main::{closure#3} (unused)
-Raw bytes (25): 0x[01, 01, 00, 04, 00, 81, 01, 05, 01, 14, 00, 01, 15, 02, 0a, 00, 02, 0a, 00, 0b, 00, 01, 09, 01, 06]
+Raw bytes (25): 0x[01, 01, 00, 04, 00, 81, 01, 05, 01, 14, 00, 01, 15, 02, 0a, 00, 02, 09, 00, 0a, 00, 01, 09, 01, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 129, 5) to (start + 1, 20)
 - Code(Zero) at (prev + 1, 21) to (start + 2, 10)
-- Code(Zero) at (prev + 2, 10) to (start + 0, 11)
+- Code(Zero) at (prev + 2, 9) to (start + 0, 10)
 - Code(Zero) at (prev + 1, 9) to (start + 1, 6)
 Highest counter ID seen: (none)
 
diff --git a/tests/coverage/closure.coverage b/tests/coverage/closure.coverage
index 2f040b39f88..3eac52eb723 100644
--- a/tests/coverage/closure.coverage
+++ b/tests/coverage/closure.coverage
@@ -183,7 +183,7 @@
    LL|      0|            println!(
    LL|      0|                "not called: {}",
    LL|      0|                if is_true { "check" } else { "me" }
-   LL|      0|            )
+   LL|       |            )
    LL|       |    ;
    LL|       |
    LL|      1|    let short_used_not_covered_closure_line_break_block_embedded_branch =
@@ -202,7 +202,7 @@
    LL|      1|                "not called: {}",
    LL|      1|                if is_true { "check" } else { "me" }
                                                             ^0
-   LL|      1|            )
+   LL|       |            )
    LL|       |    ;
    LL|       |
    LL|      1|    let short_used_covered_closure_line_break_block_embedded_branch =
diff --git a/tests/coverage/closure_bug.cov-map b/tests/coverage/closure_bug.cov-map
index 96e1e339e56..40a8bdf9c1d 100644
--- a/tests/coverage/closure_bug.cov-map
+++ b/tests/coverage/closure_bug.cov-map
@@ -1,5 +1,5 @@
 Function name: closure_bug::main
-Raw bytes (97): 0x[01, 01, 04, 01, 05, 01, 09, 01, 0d, 01, 11, 11, 01, 07, 01, 03, 0a, 01, 09, 05, 01, 0e, 05, 01, 0f, 00, 17, 02, 00, 17, 00, 18, 01, 02, 09, 00, 0a, 01, 06, 05, 01, 0e, 09, 01, 0f, 00, 17, 06, 00, 17, 00, 18, 01, 02, 09, 00, 0a, 01, 06, 05, 01, 0e, 0d, 01, 0f, 00, 17, 0a, 00, 17, 00, 18, 01, 02, 09, 00, 0a, 01, 06, 05, 01, 0e, 11, 01, 0f, 00, 17, 0e, 00, 17, 00, 18, 01, 01, 01, 00, 02]
+Raw bytes (97): 0x[01, 01, 04, 01, 05, 01, 09, 01, 0d, 01, 11, 11, 01, 07, 01, 03, 0a, 01, 09, 05, 01, 0e, 05, 01, 0f, 00, 17, 02, 00, 16, 00, 17, 01, 02, 09, 00, 0a, 01, 06, 05, 01, 0e, 09, 01, 0f, 00, 17, 06, 00, 16, 00, 17, 01, 02, 09, 00, 0a, 01, 06, 05, 01, 0e, 0d, 01, 0f, 00, 17, 0a, 00, 16, 00, 17, 01, 02, 09, 00, 0a, 01, 06, 05, 01, 0e, 11, 01, 0f, 00, 17, 0e, 00, 16, 00, 17, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 4
@@ -11,22 +11,22 @@ Number of file 0 mappings: 17
 - Code(Counter(0)) at (prev + 7, 1) to (start + 3, 10)
 - Code(Counter(0)) at (prev + 9, 5) to (start + 1, 14)
 - Code(Counter(1)) at (prev + 1, 15) to (start + 0, 23)
-- Code(Expression(0, Sub)) at (prev + 0, 23) to (start + 0, 24)
+- Code(Expression(0, Sub)) at (prev + 0, 22) to (start + 0, 23)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 6, 5) to (start + 1, 14)
 - Code(Counter(2)) at (prev + 1, 15) to (start + 0, 23)
-- Code(Expression(1, Sub)) at (prev + 0, 23) to (start + 0, 24)
+- Code(Expression(1, Sub)) at (prev + 0, 22) to (start + 0, 23)
     = (c0 - c2)
 - Code(Counter(0)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 6, 5) to (start + 1, 14)
 - Code(Counter(3)) at (prev + 1, 15) to (start + 0, 23)
-- Code(Expression(2, Sub)) at (prev + 0, 23) to (start + 0, 24)
+- Code(Expression(2, Sub)) at (prev + 0, 22) to (start + 0, 23)
     = (c0 - c3)
 - Code(Counter(0)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 6, 5) to (start + 1, 14)
 - Code(Counter(4)) at (prev + 1, 15) to (start + 0, 23)
-- Code(Expression(3, Sub)) at (prev + 0, 23) to (start + 0, 24)
+- Code(Expression(3, Sub)) at (prev + 0, 22) to (start + 0, 23)
     = (c0 - c4)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c4
diff --git a/tests/coverage/closure_bug.coverage b/tests/coverage/closure_bug.coverage
index 3bf19f28072..cc64470baa7 100644
--- a/tests/coverage/closure_bug.coverage
+++ b/tests/coverage/closure_bug.coverage
@@ -16,7 +16,7 @@
    LL|       |
    LL|      1|    a();
    LL|      1|    if truthy { a(); }
-                                    ^0
+                                   ^0
    LL|       |
    LL|      1|    let b
    LL|       |        =
@@ -27,7 +27,7 @@
    LL|       |
    LL|      1|    b();
    LL|      1|    if truthy { b(); }
-                                    ^0
+                                   ^0
    LL|       |
    LL|      1|    let c
    LL|       |        =
@@ -38,7 +38,7 @@
    LL|       |
    LL|      1|    c();
    LL|      1|    if truthy { c(); }
-                                    ^0
+                                   ^0
    LL|       |
    LL|      1|    let d
    LL|       |        =
@@ -49,6 +49,6 @@
    LL|       |
    LL|      1|    d();
    LL|      1|    if truthy { d(); }
-                                    ^0
+                                   ^0
    LL|      1|}
 
diff --git a/tests/coverage/conditions.cov-map b/tests/coverage/conditions.cov-map
index a392d1b7028..938e4404013 100644
--- a/tests/coverage/conditions.cov-map
+++ b/tests/coverage/conditions.cov-map
@@ -1,5 +1,5 @@
 Function name: conditions::main
-Raw bytes (799): 0x[01, 01, 94, 01, 09, 2b, 2f, 41, 33, 3d, 35, 39, 01, 09, 0d, 35, 1e, 39, 0d, 35, 33, 3d, 35, 39, 2f, 41, 33, 3d, 35, 39, ce, 04, 0d, 01, 09, 03, 49, 62, 31, 03, 49, 5e, 4d, 62, 31, 03, 49, 5a, 51, 5e, 4d, 62, 31, 03, 49, 87, 01, 55, 4d, 51, 83, 01, 59, 87, 01, 55, 4d, 51, 49, 7f, 83, 01, 59, 87, 01, 55, 4d, 51, 5d, 65, ae, 01, 2d, 5d, 65, aa, 01, 69, ae, 01, 2d, 5d, 65, a6, 01, 6d, aa, 01, 69, ae, 01, 2d, 5d, 65, f3, 02, 71, 69, 6d, ef, 02, 75, f3, 02, 71, 69, 6d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, de, 02, 29, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, da, 02, 81, 01, de, 02, 29, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, d6, 02, 85, 01, da, 02, 81, 01, de, 02, 29, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, 8f, 04, 89, 01, 81, 01, 85, 01, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, 11, af, 04, b3, 04, 21, b7, 04, 1d, 15, 19, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, fe, 03, 25, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, fa, 03, 15, fe, 03, 25, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, f6, 03, 19, fa, 03, 15, fe, 03, 25, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, b7, 04, 1d, 15, 19, b3, 04, 21, b7, 04, 1d, 15, 19, ab, 04, bb, 04, 11, af, 04, b3, 04, 21, b7, 04, 1d, 15, 19, bf, 04, ca, 04, c3, 04, 31, c7, 04, 2d, 25, 29, ce, 04, 0d, 01, 09, 44, 01, 03, 01, 02, 0c, 05, 02, 0d, 02, 06, 00, 02, 06, 00, 07, 03, 03, 09, 00, 0a, 01, 00, 10, 00, 1d, 09, 01, 09, 01, 0a, ce, 04, 02, 0f, 00, 1c, 0d, 01, 0c, 00, 19, 1e, 00, 1d, 00, 2a, 1a, 00, 2e, 00, 3c, 2f, 00, 3d, 02, 0a, 41, 02, 0a, 00, 0b, 2b, 01, 09, 01, 12, ca, 04, 03, 09, 00, 0f, 03, 03, 09, 01, 0c, 45, 01, 0d, 02, 06, 00, 02, 06, 00, 07, 03, 02, 08, 00, 15, 49, 00, 16, 02, 06, 62, 02, 0f, 00, 1c, 5e, 01, 0c, 00, 19, 5a, 00, 1d, 00, 2a, 56, 00, 2e, 00, 3c, 83, 01, 00, 3d, 02, 0a, 59, 02, 0a, 00, 0b, 7f, 01, 09, 00, 17, 31, 02, 09, 00, 0f, 7b, 03, 08, 00, 0c, 5d, 01, 0d, 01, 10, 61, 01, 11, 02, 0a, 00, 02, 0a, 00, 0b, 5d, 02, 0c, 00, 19, 65, 00, 1a, 02, 0a, ae, 01, 04, 11, 00, 1e, aa, 01, 01, 10, 00, 1d, a6, 01, 00, 21, 00, 2e, a2, 01, 00, 32, 00, 40, ef, 02, 00, 41, 02, 0e, 75, 02, 0e, 00, 0f, eb, 02, 01, 0d, 00, 1b, 2d, 02, 0d, 00, 13, 00, 02, 06, 00, 07, e3, 02, 02, 09, 01, 0c, 79, 01, 0d, 02, 06, 00, 02, 06, 00, 07, 83, 04, 02, 09, 00, 0a, e3, 02, 00, 10, 00, 1d, 7d, 00, 1e, 02, 06, de, 02, 02, 0f, 00, 1c, da, 02, 01, 0c, 00, 19, d6, 02, 00, 1d, 00, 2a, d2, 02, 00, 2e, 00, 3c, 8b, 04, 00, 3d, 02, 0a, 8d, 01, 02, 0a, 00, 0b, 87, 04, 01, 09, 00, 17, 29, 02, 0d, 02, 0f, ab, 04, 05, 09, 00, 0a, 83, 04, 00, 10, 00, 1d, 11, 00, 1e, 02, 06, fe, 03, 02, 0f, 00, 1c, fa, 03, 01, 0c, 00, 19, f6, 03, 00, 1d, 00, 2a, f2, 03, 00, 2e, 00, 3c, b3, 04, 00, 3d, 02, 0a, 21, 02, 0a, 00, 0b, af, 04, 01, 09, 00, 17, 25, 02, 09, 00, 0f, a7, 04, 02, 01, 00, 02]
+Raw bytes (799): 0x[01, 01, 94, 01, 09, 2b, 2f, 41, 33, 3d, 35, 39, 01, 09, 0d, 35, 1e, 39, 0d, 35, 33, 3d, 35, 39, 2f, 41, 33, 3d, 35, 39, ce, 04, 0d, 01, 09, 03, 49, 62, 31, 03, 49, 5e, 4d, 62, 31, 03, 49, 5a, 51, 5e, 4d, 62, 31, 03, 49, 87, 01, 55, 4d, 51, 83, 01, 59, 87, 01, 55, 4d, 51, 49, 7f, 83, 01, 59, 87, 01, 55, 4d, 51, 5d, 65, ae, 01, 2d, 5d, 65, aa, 01, 69, ae, 01, 2d, 5d, 65, a6, 01, 6d, aa, 01, 69, ae, 01, 2d, 5d, 65, f3, 02, 71, 69, 6d, ef, 02, 75, f3, 02, 71, 69, 6d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, de, 02, 29, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, da, 02, 81, 01, de, 02, 29, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, d6, 02, 85, 01, da, 02, 81, 01, de, 02, 29, e3, 02, 7d, e7, 02, 00, 65, eb, 02, ef, 02, 75, f3, 02, 71, 69, 6d, 8f, 04, 89, 01, 81, 01, 85, 01, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, 11, af, 04, b3, 04, 21, b7, 04, 1d, 15, 19, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, fe, 03, 25, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, fa, 03, 15, fe, 03, 25, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, f6, 03, 19, fa, 03, 15, fe, 03, 25, 83, 04, 11, 7d, 87, 04, 8b, 04, 8d, 01, 8f, 04, 89, 01, 81, 01, 85, 01, b7, 04, 1d, 15, 19, b3, 04, 21, b7, 04, 1d, 15, 19, ab, 04, bb, 04, 11, af, 04, b3, 04, 21, b7, 04, 1d, 15, 19, bf, 04, ca, 04, c3, 04, 31, c7, 04, 2d, 25, 29, ce, 04, 0d, 01, 09, 44, 01, 03, 01, 02, 0c, 05, 02, 0d, 02, 06, 00, 02, 05, 00, 06, 03, 03, 09, 00, 0a, 01, 00, 10, 00, 1d, 09, 01, 09, 01, 0a, ce, 04, 02, 0f, 00, 1c, 0d, 01, 0c, 00, 19, 1e, 00, 1d, 00, 2a, 1a, 00, 2e, 00, 3c, 2f, 00, 3d, 02, 0a, 41, 02, 09, 00, 0a, 2b, 01, 09, 01, 12, ca, 04, 03, 09, 00, 0f, 03, 03, 09, 01, 0c, 45, 01, 0d, 02, 06, 00, 02, 05, 00, 06, 03, 02, 08, 00, 15, 49, 00, 16, 02, 06, 62, 02, 0f, 00, 1c, 5e, 01, 0c, 00, 19, 5a, 00, 1d, 00, 2a, 56, 00, 2e, 00, 3c, 83, 01, 00, 3d, 02, 0a, 59, 02, 09, 00, 0a, 7f, 01, 09, 00, 17, 31, 02, 09, 00, 0f, 7b, 03, 08, 00, 0c, 5d, 01, 0d, 01, 10, 61, 01, 11, 02, 0a, 00, 02, 09, 00, 0a, 5d, 02, 0c, 00, 19, 65, 00, 1a, 02, 0a, ae, 01, 04, 11, 00, 1e, aa, 01, 01, 10, 00, 1d, a6, 01, 00, 21, 00, 2e, a2, 01, 00, 32, 00, 40, ef, 02, 00, 41, 02, 0e, 75, 02, 0d, 00, 0e, eb, 02, 01, 0d, 00, 1b, 2d, 02, 0d, 00, 13, 00, 02, 05, 00, 06, e3, 02, 02, 09, 01, 0c, 79, 01, 0d, 02, 06, 00, 02, 05, 00, 06, 83, 04, 02, 09, 00, 0a, e3, 02, 00, 10, 00, 1d, 7d, 00, 1e, 02, 06, de, 02, 02, 0f, 00, 1c, da, 02, 01, 0c, 00, 19, d6, 02, 00, 1d, 00, 2a, d2, 02, 00, 2e, 00, 3c, 8b, 04, 00, 3d, 02, 0a, 8d, 01, 02, 09, 00, 0a, 87, 04, 01, 09, 00, 17, 29, 02, 0d, 02, 0f, ab, 04, 05, 09, 00, 0a, 83, 04, 00, 10, 00, 1d, 11, 00, 1e, 02, 06, fe, 03, 02, 0f, 00, 1c, fa, 03, 01, 0c, 00, 19, f6, 03, 00, 1d, 00, 2a, f2, 03, 00, 2e, 00, 3c, b3, 04, 00, 3d, 02, 0a, 21, 02, 09, 00, 0a, af, 04, 01, 09, 00, 17, 25, 02, 09, 00, 0f, a7, 04, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 148
@@ -154,7 +154,7 @@ Number of expressions: 148
 Number of file 0 mappings: 68
 - Code(Counter(0)) at (prev + 3, 1) to (start + 2, 12)
 - Code(Counter(1)) at (prev + 2, 13) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Expression(0, Add)) at (prev + 3, 9) to (start + 0, 10)
     = (c2 + (((c13 + c14) + c15) + c16))
 - Code(Counter(0)) at (prev + 0, 16) to (start + 0, 29)
@@ -168,7 +168,7 @@ Number of file 0 mappings: 68
     = ((c3 - c13) - c14)
 - Code(Expression(11, Add)) at (prev + 0, 61) to (start + 2, 10)
     = ((c13 + c14) + c15)
-- Code(Counter(16)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Counter(16)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(10, Add)) at (prev + 1, 9) to (start + 1, 18)
     = (((c13 + c14) + c15) + c16)
 - Code(Expression(146, Sub)) at (prev + 3, 9) to (start + 0, 15)
@@ -176,7 +176,7 @@ Number of file 0 mappings: 68
 - Code(Expression(0, Add)) at (prev + 3, 9) to (start + 1, 12)
     = (c2 + (((c13 + c14) + c15) + c16))
 - Code(Counter(17)) at (prev + 1, 13) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Expression(0, Add)) at (prev + 2, 8) to (start + 0, 21)
     = (c2 + (((c13 + c14) + c15) + c16))
 - Code(Counter(18)) at (prev + 0, 22) to (start + 2, 6)
@@ -190,7 +190,7 @@ Number of file 0 mappings: 68
     = (((((c2 + (((c13 + c14) + c15) + c16)) - c18) - c12) - c19) - c20)
 - Code(Expression(32, Add)) at (prev + 0, 61) to (start + 2, 10)
     = ((c19 + c20) + c21)
-- Code(Counter(22)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Counter(22)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(31, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (((c19 + c20) + c21) + c22)
 - Code(Counter(12)) at (prev + 2, 9) to (start + 0, 15)
@@ -198,7 +198,7 @@ Number of file 0 mappings: 68
     = (c18 + (((c19 + c20) + c21) + c22))
 - Code(Counter(23)) at (prev + 1, 13) to (start + 1, 16)
 - Code(Counter(24)) at (prev + 1, 17) to (start + 2, 10)
-- Code(Zero) at (prev + 2, 10) to (start + 0, 11)
+- Code(Zero) at (prev + 2, 9) to (start + 0, 10)
 - Code(Counter(23)) at (prev + 2, 12) to (start + 0, 25)
 - Code(Counter(25)) at (prev + 0, 26) to (start + 2, 10)
 - Code(Expression(43, Sub)) at (prev + 4, 17) to (start + 0, 30)
@@ -211,15 +211,15 @@ Number of file 0 mappings: 68
     = ((((c23 - c25) - c11) - c26) - c27)
 - Code(Expression(91, Add)) at (prev + 0, 65) to (start + 2, 14)
     = ((c26 + c27) + c28)
-- Code(Counter(29)) at (prev + 2, 14) to (start + 0, 15)
+- Code(Counter(29)) at (prev + 2, 13) to (start + 0, 14)
 - Code(Expression(90, Add)) at (prev + 1, 13) to (start + 0, 27)
     = (((c26 + c27) + c28) + c29)
 - Code(Counter(11)) at (prev + 2, 13) to (start + 0, 19)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Expression(88, Add)) at (prev + 2, 9) to (start + 1, 12)
     = ((c25 + (((c26 + c27) + c28) + c29)) + Zero)
 - Code(Counter(30)) at (prev + 1, 13) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Expression(128, Add)) at (prev + 2, 9) to (start + 0, 10)
     = (c31 + (((c32 + c33) + c34) + c35))
 - Code(Expression(88, Add)) at (prev + 0, 16) to (start + 0, 29)
@@ -235,7 +235,7 @@ Number of file 0 mappings: 68
     = ((((((c25 + (((c26 + c27) + c28) + c29)) + Zero) - c31) - c10) - c32) - c33)
 - Code(Expression(130, Add)) at (prev + 0, 61) to (start + 2, 10)
     = ((c32 + c33) + c34)
-- Code(Counter(35)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Counter(35)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(129, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (((c32 + c33) + c34) + c35)
 - Code(Counter(10)) at (prev + 2, 13) to (start + 2, 15)
@@ -254,7 +254,7 @@ Number of file 0 mappings: 68
     = (((((c31 + (((c32 + c33) + c34) + c35)) - c4) - c9) - c5) - c6)
 - Code(Expression(140, Add)) at (prev + 0, 61) to (start + 2, 10)
     = ((c5 + c6) + c7)
-- Code(Counter(8)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Counter(8)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(139, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (((c5 + c6) + c7) + c8)
 - Code(Counter(9)) at (prev + 2, 9) to (start + 0, 15)
diff --git a/tests/coverage/conditions.coverage b/tests/coverage/conditions.coverage
index 48516217592..83944d37c98 100644
--- a/tests/coverage/conditions.coverage
+++ b/tests/coverage/conditions.coverage
@@ -5,7 +5,7 @@
    LL|      1|    if true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|       |    const B: u32 = 100;
    LL|      1|    let x = if countdown > 7 {
@@ -25,7 +25,7 @@
    LL|      1|    if true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|      1|    if countdown > 7 {
    LL|      1|        countdown -= 4;
@@ -44,7 +44,7 @@
    LL|      1|        if true {
    LL|      1|            countdown = 10;
    LL|      1|        }
-                       ^0
+                      ^0
    LL|       |
    LL|      1|        if countdown > 7 {
    LL|      1|            countdown -= 4;
@@ -64,7 +64,7 @@
    LL|      1|    if true {
    LL|      1|        countdown = 1;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|      1|    let z = if countdown > 7 {
                       ^0
diff --git a/tests/coverage/dead_code.cov-map b/tests/coverage/dead_code.cov-map
index b94c6e656ab..897372fe0b5 100644
--- a/tests/coverage/dead_code.cov-map
+++ b/tests/coverage/dead_code.cov-map
@@ -1,5 +1,5 @@
 Function name: dead_code::main
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 1b, 01, 07, 0f, 05, 07, 10, 02, 06, 02, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 1b, 01, 07, 0f, 05, 07, 10, 02, 06, 02, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -7,32 +7,32 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 27, 1) to (start + 7, 15)
 - Code(Counter(1)) at (prev + 7, 16) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: dead_code::unused_fn (unused)
-Raw bytes (24): 0x[01, 01, 00, 04, 00, 0f, 01, 07, 0f, 00, 07, 10, 02, 06, 00, 02, 06, 00, 07, 00, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 00, 0f, 01, 07, 0f, 00, 07, 10, 02, 06, 00, 02, 05, 00, 06, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 15, 1) to (start + 7, 15)
 - Code(Zero) at (prev + 7, 16) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: (none)
 
 Function name: dead_code::unused_pub_fn_not_in_library (unused)
-Raw bytes (24): 0x[01, 01, 00, 04, 00, 03, 01, 07, 0f, 00, 07, 10, 02, 06, 00, 02, 06, 00, 07, 00, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 00, 03, 01, 07, 0f, 00, 07, 10, 02, 06, 00, 02, 05, 00, 06, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 3, 1) to (start + 7, 15)
 - Code(Zero) at (prev + 7, 16) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: (none)
 
diff --git a/tests/coverage/dead_code.coverage b/tests/coverage/dead_code.coverage
index c4ee9f23f08..55d196f8160 100644
--- a/tests/coverage/dead_code.coverage
+++ b/tests/coverage/dead_code.coverage
@@ -34,6 +34,6 @@
    LL|      1|    if is_true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|}
 
diff --git a/tests/coverage/if.cov-map b/tests/coverage/if.cov-map
index 8f12afac027..a77ba8194a4 100644
--- a/tests/coverage/if.cov-map
+++ b/tests/coverage/if.cov-map
@@ -1,5 +1,5 @@
 Function name: if::main
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 04, 01, 12, 10, 05, 13, 05, 05, 06, 02, 05, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 04, 01, 12, 10, 05, 13, 05, 05, 06, 02, 05, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -7,7 +7,7 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 4, 1) to (start + 18, 16)
 - Code(Counter(1)) at (prev + 19, 5) to (start + 5, 6)
-- Code(Expression(0, Sub)) at (prev + 5, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 5, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
diff --git a/tests/coverage/if.coverage b/tests/coverage/if.coverage
index 77db24ef51b..0762418347c 100644
--- a/tests/coverage/if.coverage
+++ b/tests/coverage/if.coverage
@@ -26,6 +26,6 @@
    LL|      1|            10
    LL|      1|        ;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|}
 
diff --git a/tests/coverage/if_not.cov-map b/tests/coverage/if_not.cov-map
index a2c276b7bb7..f47139ce5a4 100644
--- a/tests/coverage/if_not.cov-map
+++ b/tests/coverage/if_not.cov-map
@@ -1,5 +1,5 @@
 Function name: if_not::if_not
-Raw bytes (60): 0x[01, 01, 03, 01, 05, 01, 09, 01, 0d, 0a, 01, 05, 01, 03, 0d, 02, 04, 05, 02, 06, 05, 02, 06, 00, 07, 01, 03, 09, 01, 0d, 06, 02, 05, 02, 06, 09, 02, 06, 00, 07, 01, 03, 09, 01, 0d, 0a, 02, 05, 02, 06, 0d, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (60): 0x[01, 01, 03, 01, 05, 01, 09, 01, 0d, 0a, 01, 05, 01, 03, 0d, 02, 04, 05, 02, 06, 05, 02, 05, 00, 06, 01, 03, 09, 01, 0d, 06, 02, 05, 02, 06, 09, 02, 05, 00, 06, 01, 03, 09, 01, 0d, 0a, 02, 05, 02, 06, 0d, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 3
@@ -10,11 +10,11 @@ Number of file 0 mappings: 10
 - Code(Counter(0)) at (prev + 5, 1) to (start + 3, 13)
 - Code(Expression(0, Sub)) at (prev + 4, 5) to (start + 2, 6)
     = (c0 - c1)
-- Code(Counter(1)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(1)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 3, 9) to (start + 1, 13)
 - Code(Expression(1, Sub)) at (prev + 2, 5) to (start + 2, 6)
     = (c0 - c2)
-- Code(Counter(2)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(2)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 3, 9) to (start + 1, 13)
 - Code(Expression(2, Sub)) at (prev + 2, 5) to (start + 2, 6)
     = (c0 - c3)
diff --git a/tests/coverage/inner_items.cov-map b/tests/coverage/inner_items.cov-map
index 16e86b2cade..a12cce25b64 100644
--- a/tests/coverage/inner_items.cov-map
+++ b/tests/coverage/inner_items.cov-map
@@ -17,7 +17,7 @@ Number of file 0 mappings: 1
 Highest counter ID seen: c0
 
 Function name: inner_items::main
-Raw bytes (43): 0x[01, 01, 02, 01, 05, 01, 09, 07, 01, 03, 01, 07, 0f, 05, 07, 10, 02, 06, 02, 02, 06, 00, 07, 01, 24, 08, 00, 0f, 09, 00, 10, 02, 06, 06, 02, 06, 00, 07, 01, 02, 09, 05, 02]
+Raw bytes (43): 0x[01, 01, 02, 01, 05, 01, 09, 07, 01, 03, 01, 07, 0f, 05, 07, 10, 02, 06, 02, 02, 05, 00, 06, 01, 24, 08, 00, 0f, 09, 00, 10, 02, 06, 06, 02, 05, 00, 06, 01, 02, 09, 05, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
@@ -26,11 +26,11 @@ Number of expressions: 2
 Number of file 0 mappings: 7
 - Code(Counter(0)) at (prev + 3, 1) to (start + 7, 15)
 - Code(Counter(1)) at (prev + 7, 16) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 36, 8) to (start + 0, 15)
 - Code(Counter(2)) at (prev + 0, 16) to (start + 2, 6)
-- Code(Expression(1, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(1, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c2)
 - Code(Counter(0)) at (prev + 2, 9) to (start + 5, 2)
 Highest counter ID seen: c2
diff --git a/tests/coverage/inner_items.coverage b/tests/coverage/inner_items.coverage
index 152f3da1a22..8244d347b59 100644
--- a/tests/coverage/inner_items.coverage
+++ b/tests/coverage/inner_items.coverage
@@ -10,7 +10,7 @@
    LL|      1|    if is_true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|       |    mod in_mod {
    LL|       |        const IN_MOD_CONST: u32 = 1000;
@@ -49,7 +49,7 @@
    LL|      1|    if is_true {
    LL|      1|        in_func(countdown);
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|      1|    let mut val = InStruct {
    LL|      1|        in_struct_field: 101, //
diff --git a/tests/coverage/lazy_boolean.cov-map b/tests/coverage/lazy_boolean.cov-map
index fcb9d8f1ff5..b0c2d736573 100644
--- a/tests/coverage/lazy_boolean.cov-map
+++ b/tests/coverage/lazy_boolean.cov-map
@@ -1,5 +1,5 @@
 Function name: lazy_boolean::main
-Raw bytes (158): 0x[01, 01, 07, 01, 05, 01, 09, 01, 0d, 01, 19, 01, 1d, 01, 21, 01, 25, 1c, 01, 04, 01, 07, 0f, 05, 07, 10, 04, 06, 02, 04, 06, 00, 07, 01, 02, 09, 00, 11, 01, 02, 0d, 00, 12, 06, 02, 0d, 00, 12, 01, 03, 09, 00, 11, 01, 02, 0d, 00, 12, 0a, 02, 0d, 00, 12, 01, 02, 09, 00, 11, 01, 00, 14, 00, 19, 11, 00, 1d, 00, 22, 01, 01, 09, 00, 11, 01, 00, 14, 00, 19, 15, 00, 1d, 00, 22, 01, 03, 09, 01, 10, 0e, 02, 05, 03, 06, 19, 03, 06, 00, 07, 01, 03, 09, 00, 10, 1d, 01, 05, 03, 06, 12, 05, 05, 03, 06, 01, 05, 08, 00, 10, 16, 00, 11, 02, 06, 21, 02, 06, 00, 07, 01, 02, 08, 00, 0f, 25, 00, 10, 02, 06, 1a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
+Raw bytes (158): 0x[01, 01, 07, 01, 05, 01, 09, 01, 0d, 01, 19, 01, 1d, 01, 21, 01, 25, 1c, 01, 04, 01, 07, 0f, 05, 07, 10, 04, 06, 02, 04, 05, 00, 06, 01, 02, 09, 00, 11, 01, 02, 0d, 00, 12, 06, 02, 0d, 00, 12, 01, 03, 09, 00, 11, 01, 02, 0d, 00, 12, 0a, 02, 0d, 00, 12, 01, 02, 09, 00, 11, 01, 00, 14, 00, 19, 11, 00, 1d, 00, 22, 01, 01, 09, 00, 11, 01, 00, 14, 00, 19, 15, 00, 1d, 00, 22, 01, 03, 09, 01, 10, 0e, 02, 05, 03, 06, 19, 03, 05, 00, 06, 01, 03, 09, 00, 10, 1d, 01, 05, 03, 06, 12, 05, 05, 03, 06, 01, 05, 08, 00, 10, 16, 00, 11, 02, 06, 21, 02, 05, 00, 06, 01, 02, 08, 00, 0f, 25, 00, 10, 02, 06, 1a, 02, 0c, 02, 06, 01, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 7
@@ -13,7 +13,7 @@ Number of expressions: 7
 Number of file 0 mappings: 28
 - Code(Counter(0)) at (prev + 4, 1) to (start + 7, 15)
 - Code(Counter(1)) at (prev + 7, 16) to (start + 4, 6)
-- Code(Expression(0, Sub)) at (prev + 4, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 4, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 2, 9) to (start + 0, 17)
 - Code(Counter(0)) at (prev + 2, 13) to (start + 0, 18)
@@ -32,7 +32,7 @@ Number of file 0 mappings: 28
 - Code(Counter(0)) at (prev + 3, 9) to (start + 1, 16)
 - Code(Expression(3, Sub)) at (prev + 2, 5) to (start + 3, 6)
     = (c0 - c6)
-- Code(Counter(6)) at (prev + 3, 6) to (start + 0, 7)
+- Code(Counter(6)) at (prev + 3, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 3, 9) to (start + 0, 16)
 - Code(Counter(7)) at (prev + 1, 5) to (start + 3, 6)
 - Code(Expression(4, Sub)) at (prev + 5, 5) to (start + 3, 6)
@@ -40,7 +40,7 @@ Number of file 0 mappings: 28
 - Code(Counter(0)) at (prev + 5, 8) to (start + 0, 16)
 - Code(Expression(5, Sub)) at (prev + 0, 17) to (start + 2, 6)
     = (c0 - c8)
-- Code(Counter(8)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Counter(8)) at (prev + 2, 5) to (start + 0, 6)
 - Code(Counter(0)) at (prev + 2, 8) to (start + 0, 15)
 - Code(Counter(9)) at (prev + 0, 16) to (start + 2, 6)
 - Code(Expression(6, Sub)) at (prev + 2, 12) to (start + 2, 6)
diff --git a/tests/coverage/lazy_boolean.coverage b/tests/coverage/lazy_boolean.coverage
index f058be83900..828ba2a5811 100644
--- a/tests/coverage/lazy_boolean.coverage
+++ b/tests/coverage/lazy_boolean.coverage
@@ -13,7 +13,7 @@
    LL|      1|        b = 10;
    LL|      1|        c = 100;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |    let
    LL|      1|        somebool
    LL|       |        =
diff --git a/tests/coverage/loop-break.cov-map b/tests/coverage/loop-break.cov-map
index 63280a0bf7c..0b4c42a43da 100644
--- a/tests/coverage/loop-break.cov-map
+++ b/tests/coverage/loop-break.cov-map
@@ -1,5 +1,5 @@
 Function name: loop_break::main
-Raw bytes (31): 0x[01, 01, 01, 01, 05, 05, 01, 03, 01, 00, 0b, 03, 02, 0c, 00, 27, 01, 01, 0d, 00, 12, 05, 01, 0a, 00, 0b, 01, 02, 01, 00, 02]
+Raw bytes (31): 0x[01, 01, 01, 01, 05, 05, 01, 03, 01, 00, 0b, 03, 02, 0c, 00, 27, 01, 01, 0d, 00, 12, 05, 01, 09, 00, 0a, 01, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -9,7 +9,7 @@ Number of file 0 mappings: 5
 - Code(Expression(0, Add)) at (prev + 2, 12) to (start + 0, 39)
     = (c0 + c1)
 - Code(Counter(0)) at (prev + 1, 13) to (start + 0, 18)
-- Code(Counter(1)) at (prev + 1, 10) to (start + 0, 11)
+- Code(Counter(1)) at (prev + 1, 9) to (start + 0, 10)
 - Code(Counter(0)) at (prev + 2, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
diff --git a/tests/coverage/loops_branches.cov-map b/tests/coverage/loops_branches.cov-map
index 1d263611a3a..61a6bda676a 100644
--- a/tests/coverage/loops_branches.cov-map
+++ b/tests/coverage/loops_branches.cov-map
@@ -1,5 +1,5 @@
 Function name: <loops_branches::DebugTest as core::fmt::Debug>::fmt
-Raw bytes (228): 0x[01, 01, 2a, 05, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, a3, 01, a7, 01, 0d, 00, 11, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 96, 01, 00, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 96, 01, 11, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 8f, 01, 19, 25, 92, 01, 96, 01, 11, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 14, 01, 09, 05, 01, 10, 05, 02, 10, 00, 15, 00, 01, 17, 00, 1b, 00, 00, 1c, 00, 1e, 02, 01, 0e, 00, 0f, 05, 01, 0d, 00, 1e, 25, 00, 1e, 00, 1f, 00, 01, 10, 01, 0a, 9a, 01, 03, 0d, 00, 0e, 9f, 01, 00, 12, 00, 17, 9a, 01, 01, 10, 00, 14, 96, 01, 01, 14, 00, 19, 00, 01, 1b, 00, 1f, 00, 00, 20, 00, 22, 46, 01, 12, 00, 13, 96, 01, 01, 11, 00, 22, 92, 01, 00, 22, 00, 23, 00, 01, 14, 01, 0e, 19, 03, 09, 00, 0f, 8b, 01, 01, 05, 00, 06]
+Raw bytes (228): 0x[01, 01, 2a, 05, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, a3, 01, a7, 01, 0d, 00, 11, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 96, 01, 00, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 96, 01, 11, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 8f, 01, 19, 25, 92, 01, 96, 01, 11, 9a, 01, 00, 9f, 01, 19, a3, 01, a7, 01, 0d, 00, 11, 00, 14, 01, 09, 05, 01, 10, 05, 02, 10, 00, 15, 00, 01, 17, 00, 1b, 00, 00, 1c, 00, 1e, 02, 01, 0d, 00, 0e, 05, 01, 0d, 00, 1e, 25, 00, 1e, 00, 1f, 00, 01, 10, 01, 0a, 9a, 01, 03, 0d, 00, 0e, 9f, 01, 00, 12, 00, 17, 9a, 01, 01, 10, 00, 14, 96, 01, 01, 14, 00, 19, 00, 01, 1b, 00, 1f, 00, 00, 20, 00, 22, 46, 01, 11, 00, 12, 96, 01, 01, 11, 00, 22, 92, 01, 00, 22, 00, 23, 00, 01, 14, 01, 0e, 19, 03, 09, 00, 0f, 8b, 01, 01, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 42
@@ -50,7 +50,7 @@ Number of file 0 mappings: 20
 - Code(Counter(1)) at (prev + 2, 16) to (start + 0, 21)
 - Code(Zero) at (prev + 1, 23) to (start + 0, 27)
 - Code(Zero) at (prev + 0, 28) to (start + 0, 30)
-- Code(Expression(0, Sub)) at (prev + 1, 14) to (start + 0, 15)
+- Code(Expression(0, Sub)) at (prev + 1, 13) to (start + 0, 14)
     = (c1 - Zero)
 - Code(Counter(1)) at (prev + 1, 13) to (start + 0, 30)
 - Code(Counter(9)) at (prev + 0, 30) to (start + 0, 31)
@@ -65,7 +65,7 @@ Number of file 0 mappings: 20
     = ((((c3 + Zero) + (c4 + Zero)) - c6) - Zero)
 - Code(Zero) at (prev + 1, 27) to (start + 0, 31)
 - Code(Zero) at (prev + 0, 32) to (start + 0, 34)
-- Code(Expression(17, Sub)) at (prev + 1, 18) to (start + 0, 19)
+- Code(Expression(17, Sub)) at (prev + 1, 17) to (start + 0, 18)
     = (((((c3 + Zero) + (c4 + Zero)) - c6) - Zero) - Zero)
 - Code(Expression(37, Sub)) at (prev + 1, 17) to (start + 0, 34)
     = ((((c3 + Zero) + (c4 + Zero)) - c6) - Zero)
@@ -78,7 +78,7 @@ Number of file 0 mappings: 20
 Highest counter ID seen: c9
 
 Function name: <loops_branches::DisplayTest as core::fmt::Display>::fmt
-Raw bytes (230): 0x[01, 01, 2b, 01, 00, 02, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, a7, 01, ab, 01, 00, 0d, 00, 15, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9a, 01, 00, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9a, 01, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 93, 01, 25, 96, 01, 19, 9a, 01, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 14, 01, 22, 05, 01, 11, 00, 01, 12, 01, 0a, 02, 02, 10, 00, 15, 00, 01, 17, 00, 1b, 00, 00, 1c, 00, 1e, 06, 01, 0e, 00, 0f, 02, 01, 0d, 00, 1e, 25, 00, 1e, 00, 1f, 9e, 01, 02, 0d, 00, 0e, a3, 01, 00, 12, 00, 17, 9e, 01, 01, 10, 00, 15, 00, 00, 16, 01, 0e, 9a, 01, 02, 14, 00, 19, 00, 01, 1b, 00, 1f, 00, 00, 20, 00, 22, 4a, 01, 12, 00, 13, 9a, 01, 01, 11, 00, 22, 96, 01, 00, 22, 00, 23, 19, 03, 09, 00, 0f, 8f, 01, 01, 05, 00, 06]
+Raw bytes (230): 0x[01, 01, 2b, 01, 00, 02, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, a7, 01, ab, 01, 00, 0d, 00, 15, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9a, 01, 00, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 9a, 01, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 93, 01, 25, 96, 01, 19, 9a, 01, 15, 9e, 01, 00, a3, 01, 19, a7, 01, ab, 01, 00, 0d, 00, 15, 14, 01, 22, 05, 01, 11, 00, 01, 12, 01, 0a, 02, 02, 10, 00, 15, 00, 01, 17, 00, 1b, 00, 00, 1c, 00, 1e, 06, 01, 0d, 00, 0e, 02, 01, 0d, 00, 1e, 25, 00, 1e, 00, 1f, 9e, 01, 02, 0d, 00, 0e, a3, 01, 00, 12, 00, 17, 9e, 01, 01, 10, 00, 15, 00, 00, 16, 01, 0e, 9a, 01, 02, 14, 00, 19, 00, 01, 1b, 00, 1f, 00, 00, 20, 00, 22, 4a, 01, 11, 00, 12, 9a, 01, 01, 11, 00, 22, 96, 01, 00, 22, 00, 23, 19, 03, 09, 00, 0f, 8f, 01, 01, 05, 00, 06]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 43
@@ -132,7 +132,7 @@ Number of file 0 mappings: 20
     = (c0 - Zero)
 - Code(Zero) at (prev + 1, 23) to (start + 0, 27)
 - Code(Zero) at (prev + 0, 28) to (start + 0, 30)
-- Code(Expression(1, Sub)) at (prev + 1, 14) to (start + 0, 15)
+- Code(Expression(1, Sub)) at (prev + 1, 13) to (start + 0, 14)
     = ((c0 - Zero) - Zero)
 - Code(Expression(0, Sub)) at (prev + 1, 13) to (start + 0, 30)
     = (c0 - Zero)
@@ -148,7 +148,7 @@ Number of file 0 mappings: 20
     = ((((Zero + c3) + (Zero + c5)) - c6) - Zero)
 - Code(Zero) at (prev + 1, 27) to (start + 0, 31)
 - Code(Zero) at (prev + 0, 32) to (start + 0, 34)
-- Code(Expression(18, Sub)) at (prev + 1, 18) to (start + 0, 19)
+- Code(Expression(18, Sub)) at (prev + 1, 17) to (start + 0, 18)
     = (((((Zero + c3) + (Zero + c5)) - c6) - Zero) - Zero)
 - Code(Expression(38, Sub)) at (prev + 1, 17) to (start + 0, 34)
     = ((((Zero + c3) + (Zero + c5)) - c6) - Zero)
diff --git a/tests/coverage/match_or_pattern.cov-map b/tests/coverage/match_or_pattern.cov-map
index f6491ea262d..2beb327bc05 100644
--- a/tests/coverage/match_or_pattern.cov-map
+++ b/tests/coverage/match_or_pattern.cov-map
@@ -1,5 +1,5 @@
 Function name: match_or_pattern::main
-Raw bytes (185): 0x[01, 01, 1c, 01, 05, 09, 0d, 23, 11, 09, 0d, 1f, 15, 23, 11, 09, 0d, 23, 11, 09, 0d, 19, 1d, 43, 21, 19, 1d, 3f, 25, 43, 21, 19, 1d, 43, 21, 19, 1d, 29, 2d, 63, 31, 29, 2d, 5f, 35, 63, 31, 29, 2d, 63, 31, 29, 2d, 39, 3d, 6f, 41, 39, 3d, 19, 01, 01, 01, 08, 0f, 05, 08, 10, 03, 06, 02, 03, 06, 00, 07, 01, 01, 0b, 00, 11, 11, 03, 1b, 00, 1d, 23, 01, 0e, 00, 10, 1f, 02, 08, 00, 0f, 15, 00, 10, 03, 06, 12, 03, 06, 00, 07, 1f, 01, 0b, 00, 11, 21, 01, 1b, 00, 1d, 43, 01, 0e, 00, 10, 3f, 02, 08, 00, 0f, 25, 00, 10, 03, 06, 32, 03, 06, 00, 07, 3f, 01, 0b, 00, 11, 31, 01, 1b, 00, 1d, 63, 01, 0e, 00, 10, 5f, 02, 08, 00, 0f, 35, 00, 10, 03, 06, 52, 03, 06, 00, 07, 5f, 01, 0b, 00, 11, 41, 01, 1b, 00, 1d, 6f, 01, 0e, 00, 10, 6b, 02, 01, 00, 02]
+Raw bytes (185): 0x[01, 01, 1c, 01, 05, 09, 0d, 23, 11, 09, 0d, 1f, 15, 23, 11, 09, 0d, 23, 11, 09, 0d, 19, 1d, 43, 21, 19, 1d, 3f, 25, 43, 21, 19, 1d, 43, 21, 19, 1d, 29, 2d, 63, 31, 29, 2d, 5f, 35, 63, 31, 29, 2d, 63, 31, 29, 2d, 39, 3d, 6f, 41, 39, 3d, 19, 01, 01, 01, 08, 0f, 05, 08, 10, 03, 06, 02, 03, 05, 00, 06, 01, 01, 0b, 00, 11, 11, 03, 1b, 00, 1d, 23, 01, 0e, 00, 10, 1f, 02, 08, 00, 0f, 15, 00, 10, 03, 06, 12, 03, 05, 00, 06, 1f, 01, 0b, 00, 11, 21, 01, 1b, 00, 1d, 43, 01, 0e, 00, 10, 3f, 02, 08, 00, 0f, 25, 00, 10, 03, 06, 32, 03, 05, 00, 06, 3f, 01, 0b, 00, 11, 31, 01, 1b, 00, 1d, 63, 01, 0e, 00, 10, 5f, 02, 08, 00, 0f, 35, 00, 10, 03, 06, 52, 03, 05, 00, 06, 5f, 01, 0b, 00, 11, 41, 01, 1b, 00, 1d, 6f, 01, 0e, 00, 10, 6b, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 28
@@ -34,7 +34,7 @@ Number of expressions: 28
 Number of file 0 mappings: 25
 - Code(Counter(0)) at (prev + 1, 1) to (start + 8, 15)
 - Code(Counter(1)) at (prev + 8, 16) to (start + 3, 6)
-- Code(Expression(0, Sub)) at (prev + 3, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 3, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 11) to (start + 0, 17)
 - Code(Counter(4)) at (prev + 3, 27) to (start + 0, 29)
@@ -43,7 +43,7 @@ Number of file 0 mappings: 25
 - Code(Expression(7, Add)) at (prev + 2, 8) to (start + 0, 15)
     = ((c2 + c3) + c4)
 - Code(Counter(5)) at (prev + 0, 16) to (start + 3, 6)
-- Code(Expression(4, Sub)) at (prev + 3, 6) to (start + 0, 7)
+- Code(Expression(4, Sub)) at (prev + 3, 5) to (start + 0, 6)
     = (((c2 + c3) + c4) - c5)
 - Code(Expression(7, Add)) at (prev + 1, 11) to (start + 0, 17)
     = ((c2 + c3) + c4)
@@ -53,7 +53,7 @@ Number of file 0 mappings: 25
 - Code(Expression(15, Add)) at (prev + 2, 8) to (start + 0, 15)
     = ((c6 + c7) + c8)
 - Code(Counter(9)) at (prev + 0, 16) to (start + 3, 6)
-- Code(Expression(12, Sub)) at (prev + 3, 6) to (start + 0, 7)
+- Code(Expression(12, Sub)) at (prev + 3, 5) to (start + 0, 6)
     = (((c6 + c7) + c8) - c9)
 - Code(Expression(15, Add)) at (prev + 1, 11) to (start + 0, 17)
     = ((c6 + c7) + c8)
@@ -63,7 +63,7 @@ Number of file 0 mappings: 25
 - Code(Expression(23, Add)) at (prev + 2, 8) to (start + 0, 15)
     = ((c10 + c11) + c12)
 - Code(Counter(13)) at (prev + 0, 16) to (start + 3, 6)
-- Code(Expression(20, Sub)) at (prev + 3, 6) to (start + 0, 7)
+- Code(Expression(20, Sub)) at (prev + 3, 5) to (start + 0, 6)
     = (((c10 + c11) + c12) - c13)
 - Code(Expression(23, Add)) at (prev + 1, 11) to (start + 0, 17)
     = ((c10 + c11) + c12)
diff --git a/tests/coverage/match_or_pattern.coverage b/tests/coverage/match_or_pattern.coverage
index 94c7967215c..a65c226e567 100644
--- a/tests/coverage/match_or_pattern.coverage
+++ b/tests/coverage/match_or_pattern.coverage
@@ -10,7 +10,7 @@
    LL|      1|        a = 2;
    LL|      1|        b = 0;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    match (a, b) {
    LL|       |        // Or patterns generate MIR `SwitchInt` with multiple targets to the same `BasicBlock`.
    LL|       |        // This test confirms a fix for Issue #79569.
@@ -21,7 +21,7 @@
    LL|      1|        a = 0;
    LL|      1|        b = 0;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    match (a, b) {
    LL|      0|        (0 | 1, 2 | 3) => {}
    LL|      1|        _ => {}
@@ -30,7 +30,7 @@
    LL|      1|        a = 2;
    LL|      1|        b = 2;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    match (a, b) {
    LL|      0|        (0 | 1, 2 | 3) => {}
    LL|      1|        _ => {}
@@ -39,7 +39,7 @@
    LL|      1|        a = 0;
    LL|      1|        b = 2;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    match (a, b) {
    LL|      1|        (0 | 1, 2 | 3) => {}
    LL|      0|        _ => {}
diff --git a/tests/coverage/mcdc/condition-limit.cov-map b/tests/coverage/mcdc/condition-limit.cov-map
index a3e3b1d09c4..e3f5b49d363 100644
--- a/tests/coverage/mcdc/condition-limit.cov-map
+++ b/tests/coverage/mcdc/condition-limit.cov-map
@@ -1,5 +1,5 @@
 Function name: condition_limit::accept_7_conditions
-Raw bytes (232): 0x[01, 01, 2c, 01, 05, 05, 1d, 05, 1d, 7a, 19, 05, 1d, 7a, 19, 05, 1d, 76, 15, 7a, 19, 05, 1d, 76, 15, 7a, 19, 05, 1d, 72, 11, 76, 15, 7a, 19, 05, 1d, 72, 11, 76, 15, 7a, 19, 05, 1d, 6e, 0d, 72, 11, 76, 15, 7a, 19, 05, 1d, 6e, 0d, 72, 11, 76, 15, 7a, 19, 05, 1d, 9f, 01, 02, a3, 01, 1d, a7, 01, 19, ab, 01, 15, af, 01, 11, 09, 0d, 21, 9b, 01, 9f, 01, 02, a3, 01, 1d, a7, 01, 19, ab, 01, 15, af, 01, 11, 09, 0d, 12, 01, 07, 01, 02, 09, 28, 08, 07, 02, 08, 00, 27, 30, 05, 02, 01, 07, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 7a, 1d, 07, 06, 00, 00, 0d, 00, 0e, 7a, 00, 12, 00, 13, 30, 76, 19, 06, 05, 00, 00, 12, 00, 13, 76, 00, 17, 00, 18, 30, 72, 15, 05, 04, 00, 00, 17, 00, 18, 72, 00, 1c, 00, 1d, 30, 6e, 11, 04, 03, 00, 00, 1c, 00, 1d, 6e, 00, 21, 00, 22, 30, 6a, 0d, 03, 02, 00, 00, 21, 00, 22, 6a, 00, 26, 00, 27, 30, 21, 09, 02, 00, 00, 00, 26, 00, 27, 21, 00, 28, 02, 06, 9b, 01, 02, 06, 00, 07, 97, 01, 01, 01, 00, 02]
+Raw bytes (232): 0x[01, 01, 2c, 01, 05, 05, 1d, 05, 1d, 7a, 19, 05, 1d, 7a, 19, 05, 1d, 76, 15, 7a, 19, 05, 1d, 76, 15, 7a, 19, 05, 1d, 72, 11, 76, 15, 7a, 19, 05, 1d, 72, 11, 76, 15, 7a, 19, 05, 1d, 6e, 0d, 72, 11, 76, 15, 7a, 19, 05, 1d, 6e, 0d, 72, 11, 76, 15, 7a, 19, 05, 1d, 9f, 01, 02, a3, 01, 1d, a7, 01, 19, ab, 01, 15, af, 01, 11, 09, 0d, 21, 9b, 01, 9f, 01, 02, a3, 01, 1d, a7, 01, 19, ab, 01, 15, af, 01, 11, 09, 0d, 12, 01, 07, 01, 02, 09, 28, 08, 07, 02, 08, 00, 27, 30, 05, 02, 01, 07, 00, 00, 08, 00, 09, 05, 00, 0d, 00, 0e, 30, 7a, 1d, 07, 06, 00, 00, 0d, 00, 0e, 7a, 00, 12, 00, 13, 30, 76, 19, 06, 05, 00, 00, 12, 00, 13, 76, 00, 17, 00, 18, 30, 72, 15, 05, 04, 00, 00, 17, 00, 18, 72, 00, 1c, 00, 1d, 30, 6e, 11, 04, 03, 00, 00, 1c, 00, 1d, 6e, 00, 21, 00, 22, 30, 6a, 0d, 03, 02, 00, 00, 21, 00, 22, 6a, 00, 26, 00, 27, 30, 21, 09, 02, 00, 00, 00, 26, 00, 27, 21, 00, 28, 02, 06, 9b, 01, 02, 05, 00, 06, 97, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 44
@@ -83,7 +83,7 @@ Number of file 0 mappings: 18
     true  = c8
     false = c2
 - Code(Counter(8)) at (prev + 0, 40) to (start + 2, 6)
-- Code(Expression(38, Add)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(38, Add)) at (prev + 2, 5) to (start + 0, 6)
     = ((((((c2 + c3) + c4) + c5) + c6) + c7) + (c0 - c1))
 - Code(Expression(37, Add)) at (prev + 1, 1) to (start + 0, 2)
     = (c8 + ((((((c2 + c3) + c4) + c5) + c6) + c7) + (c0 - c1)))
diff --git a/tests/coverage/mcdc/if.cov-map b/tests/coverage/mcdc/if.cov-map
index 46960d31c01..c0e7d08bb02 100644
--- a/tests/coverage/mcdc/if.cov-map
+++ b/tests/coverage/mcdc/if.cov-map
@@ -175,7 +175,7 @@ Number of file 0 mappings: 10
 Highest counter ID seen: c4
 
 Function name: if::mcdc_nested_if
-Raw bytes (124): 0x[01, 01, 0d, 01, 05, 02, 09, 05, 09, 1b, 15, 05, 09, 1b, 15, 05, 09, 11, 15, 02, 09, 2b, 32, 0d, 2f, 11, 15, 02, 09, 0e, 01, 3b, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 00, 02, 00, 08, 00, 09, 02, 00, 0d, 00, 0e, 30, 09, 32, 02, 00, 00, 00, 0d, 00, 0e, 1b, 01, 09, 01, 0d, 28, 06, 02, 01, 0c, 00, 12, 30, 16, 15, 01, 02, 00, 00, 0c, 00, 0d, 16, 00, 11, 00, 12, 30, 0d, 11, 02, 00, 00, 00, 11, 00, 12, 0d, 00, 13, 02, 0a, 2f, 02, 0a, 00, 0b, 32, 01, 0c, 02, 06, 27, 03, 01, 00, 02]
+Raw bytes (124): 0x[01, 01, 0d, 01, 05, 02, 09, 05, 09, 1b, 15, 05, 09, 1b, 15, 05, 09, 11, 15, 02, 09, 2b, 32, 0d, 2f, 11, 15, 02, 09, 0e, 01, 3b, 01, 01, 09, 28, 03, 02, 01, 08, 00, 0e, 30, 05, 02, 01, 00, 02, 00, 08, 00, 09, 02, 00, 0d, 00, 0e, 30, 09, 32, 02, 00, 00, 00, 0d, 00, 0e, 1b, 01, 09, 01, 0d, 28, 06, 02, 01, 0c, 00, 12, 30, 16, 15, 01, 02, 00, 00, 0c, 00, 0d, 16, 00, 11, 00, 12, 30, 0d, 11, 02, 00, 00, 00, 11, 00, 12, 0d, 00, 13, 02, 0a, 2f, 02, 09, 00, 0a, 32, 01, 0c, 02, 06, 27, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 13
@@ -215,7 +215,7 @@ Number of file 0 mappings: 14
     true  = c3
     false = c4
 - Code(Counter(3)) at (prev + 0, 19) to (start + 2, 10)
-- Code(Expression(11, Add)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Expression(11, Add)) at (prev + 2, 9) to (start + 0, 10)
     = (c4 + c5)
 - Code(Expression(12, Sub)) at (prev + 1, 12) to (start + 2, 6)
     = ((c0 - c1) - c2)
diff --git a/tests/coverage/nested_loops.cov-map b/tests/coverage/nested_loops.cov-map
index c145d4c5843..21871ef3206 100644
--- a/tests/coverage/nested_loops.cov-map
+++ b/tests/coverage/nested_loops.cov-map
@@ -1,5 +1,5 @@
 Function name: nested_loops::main
-Raw bytes (115): 0x[01, 01, 17, 01, 57, 05, 09, 03, 0d, 4e, 53, 03, 0d, 15, 19, 4b, 09, 4e, 53, 03, 0d, 15, 19, 46, 05, 4b, 09, 4e, 53, 03, 0d, 15, 19, 42, 19, 46, 05, 4b, 09, 4e, 53, 03, 0d, 15, 19, 05, 09, 11, 0d, 0d, 01, 01, 01, 02, 1b, 03, 04, 13, 00, 20, 4e, 01, 0d, 01, 18, 4b, 02, 12, 00, 17, 46, 01, 10, 00, 16, 05, 01, 11, 00, 16, 42, 01, 0e, 03, 16, 3e, 04, 11, 01, 1b, 11, 02, 15, 00, 21, 15, 01, 18, 02, 12, 19, 03, 0e, 00, 0f, 57, 02, 09, 00, 17, 5b, 02, 01, 00, 02]
+Raw bytes (115): 0x[01, 01, 17, 01, 57, 05, 09, 03, 0d, 4e, 53, 03, 0d, 15, 19, 4b, 09, 4e, 53, 03, 0d, 15, 19, 46, 05, 4b, 09, 4e, 53, 03, 0d, 15, 19, 42, 19, 46, 05, 4b, 09, 4e, 53, 03, 0d, 15, 19, 05, 09, 11, 0d, 0d, 01, 01, 01, 02, 1b, 03, 04, 13, 00, 20, 4e, 01, 0d, 01, 18, 4b, 02, 12, 00, 17, 46, 01, 10, 00, 16, 05, 01, 11, 00, 16, 42, 01, 0e, 03, 16, 3e, 04, 11, 01, 1b, 11, 02, 15, 00, 21, 15, 01, 18, 02, 12, 19, 03, 0d, 00, 0e, 57, 02, 09, 00, 17, 5b, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 23
@@ -43,7 +43,7 @@ Number of file 0 mappings: 13
     = ((((((c0 + (c1 + c2)) - c3) + (c5 + c6)) - c2) - c1) - c6)
 - Code(Counter(4)) at (prev + 2, 21) to (start + 0, 33)
 - Code(Counter(5)) at (prev + 1, 24) to (start + 2, 18)
-- Code(Counter(6)) at (prev + 3, 14) to (start + 0, 15)
+- Code(Counter(6)) at (prev + 3, 13) to (start + 0, 14)
 - Code(Expression(21, Add)) at (prev + 2, 9) to (start + 0, 23)
     = (c1 + c2)
 - Code(Expression(22, Add)) at (prev + 2, 1) to (start + 0, 2)
diff --git a/tests/coverage/overflow.cov-map b/tests/coverage/overflow.cov-map
index f842ce3e896..f6bfb465bf9 100644
--- a/tests/coverage/overflow.cov-map
+++ b/tests/coverage/overflow.cov-map
@@ -1,5 +1,5 @@
 Function name: overflow::main
-Raw bytes (65): 0x[01, 01, 08, 01, 1b, 05, 1f, 09, 0d, 03, 11, 16, 05, 03, 11, 05, 1f, 09, 0d, 09, 01, 10, 01, 01, 1b, 03, 02, 0b, 00, 18, 16, 01, 0c, 00, 1a, 05, 00, 1b, 03, 0a, 12, 03, 13, 00, 20, 09, 00, 21, 03, 0a, 0d, 03, 0a, 00, 0b, 1b, 01, 09, 00, 17, 11, 02, 05, 01, 02]
+Raw bytes (65): 0x[01, 01, 08, 01, 1b, 05, 1f, 09, 0d, 03, 11, 16, 05, 03, 11, 05, 1f, 09, 0d, 09, 01, 10, 01, 01, 1b, 03, 02, 0b, 00, 18, 16, 01, 0c, 00, 1a, 05, 00, 1b, 03, 0a, 12, 03, 13, 00, 20, 09, 00, 21, 03, 0a, 0d, 03, 09, 00, 0a, 1b, 01, 09, 00, 17, 11, 02, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -21,14 +21,14 @@ Number of file 0 mappings: 9
 - Code(Expression(4, Sub)) at (prev + 3, 19) to (start + 0, 32)
     = (((c0 + (c1 + (c2 + c3))) - c4) - c1)
 - Code(Counter(2)) at (prev + 0, 33) to (start + 3, 10)
-- Code(Counter(3)) at (prev + 3, 10) to (start + 0, 11)
+- Code(Counter(3)) at (prev + 3, 9) to (start + 0, 10)
 - Code(Expression(6, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (c1 + (c2 + c3))
 - Code(Counter(4)) at (prev + 2, 5) to (start + 1, 2)
 Highest counter ID seen: c4
 
 Function name: overflow::might_overflow
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 05, 01, 01, 12, 05, 01, 13, 02, 06, 02, 02, 06, 00, 07, 01, 01, 09, 05, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 05, 01, 01, 12, 05, 01, 13, 02, 06, 02, 02, 05, 00, 06, 01, 01, 09, 05, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -36,7 +36,7 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 5, 1) to (start + 1, 18)
 - Code(Counter(1)) at (prev + 1, 19) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 9) to (start + 5, 2)
 Highest counter ID seen: c1
diff --git a/tests/coverage/panic_unwind.cov-map b/tests/coverage/panic_unwind.cov-map
index f4a7894cc1c..58a796ff3a2 100644
--- a/tests/coverage/panic_unwind.cov-map
+++ b/tests/coverage/panic_unwind.cov-map
@@ -1,5 +1,5 @@
 Function name: panic_unwind::main
-Raw bytes (65): 0x[01, 01, 08, 01, 1b, 05, 1f, 09, 0d, 03, 11, 16, 05, 03, 11, 05, 1f, 09, 0d, 09, 01, 0d, 01, 01, 1b, 03, 02, 0b, 00, 18, 16, 01, 0c, 00, 1a, 05, 00, 1b, 02, 0a, 12, 02, 13, 00, 20, 09, 00, 21, 02, 0a, 0d, 02, 0a, 00, 0b, 1b, 01, 09, 00, 17, 11, 02, 05, 01, 02]
+Raw bytes (65): 0x[01, 01, 08, 01, 1b, 05, 1f, 09, 0d, 03, 11, 16, 05, 03, 11, 05, 1f, 09, 0d, 09, 01, 0d, 01, 01, 1b, 03, 02, 0b, 00, 18, 16, 01, 0c, 00, 1a, 05, 00, 1b, 02, 0a, 12, 02, 13, 00, 20, 09, 00, 21, 02, 0a, 0d, 02, 09, 00, 0a, 1b, 01, 09, 00, 17, 11, 02, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 8
@@ -21,7 +21,7 @@ Number of file 0 mappings: 9
 - Code(Expression(4, Sub)) at (prev + 2, 19) to (start + 0, 32)
     = (((c0 + (c1 + (c2 + c3))) - c4) - c1)
 - Code(Counter(2)) at (prev + 0, 33) to (start + 2, 10)
-- Code(Counter(3)) at (prev + 2, 10) to (start + 0, 11)
+- Code(Counter(3)) at (prev + 2, 9) to (start + 0, 10)
 - Code(Expression(6, Add)) at (prev + 1, 9) to (start + 0, 23)
     = (c1 + (c2 + c3))
 - Code(Counter(4)) at (prev + 2, 5) to (start + 1, 2)
diff --git a/tests/coverage/simple_loop.cov-map b/tests/coverage/simple_loop.cov-map
index b6f1e8f6afe..d1e684efbbc 100644
--- a/tests/coverage/simple_loop.cov-map
+++ b/tests/coverage/simple_loop.cov-map
@@ -1,5 +1,5 @@
 Function name: simple_loop::main
-Raw bytes (43): 0x[01, 01, 02, 01, 05, 01, 09, 07, 01, 04, 01, 09, 10, 05, 0a, 05, 05, 06, 02, 05, 06, 00, 07, 07, 05, 0d, 02, 0e, 01, 04, 0d, 00, 12, 09, 02, 0a, 03, 0a, 01, 06, 01, 00, 02]
+Raw bytes (43): 0x[01, 01, 02, 01, 05, 01, 09, 07, 01, 04, 01, 09, 10, 05, 0a, 05, 05, 06, 02, 05, 05, 00, 06, 07, 05, 0d, 02, 0e, 01, 04, 0d, 00, 12, 09, 02, 0a, 03, 0a, 01, 06, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 2
@@ -8,7 +8,7 @@ Number of expressions: 2
 Number of file 0 mappings: 7
 - Code(Counter(0)) at (prev + 4, 1) to (start + 9, 16)
 - Code(Counter(1)) at (prev + 10, 5) to (start + 5, 6)
-- Code(Expression(0, Sub)) at (prev + 5, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 5, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Expression(1, Add)) at (prev + 5, 13) to (start + 2, 14)
     = (c0 + c2)
diff --git a/tests/coverage/simple_loop.coverage b/tests/coverage/simple_loop.coverage
index b6552c62ff9..237e509f42e 100644
--- a/tests/coverage/simple_loop.coverage
+++ b/tests/coverage/simple_loop.coverage
@@ -17,7 +17,7 @@
    LL|      1|            10
    LL|      1|        ;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|       |    loop
    LL|       |    {
diff --git a/tests/coverage/simple_match.cov-map b/tests/coverage/simple_match.cov-map
index b62edf12650..d8bf9eae4bc 100644
--- a/tests/coverage/simple_match.cov-map
+++ b/tests/coverage/simple_match.cov-map
@@ -1,5 +1,5 @@
 Function name: simple_match::main
-Raw bytes (72): 0x[01, 01, 09, 01, 05, 01, 23, 09, 0d, 1f, 11, 01, 23, 09, 0d, 1f, 11, 01, 23, 09, 0d, 0a, 01, 04, 01, 07, 0f, 05, 07, 10, 02, 06, 02, 02, 06, 00, 07, 1f, 05, 09, 00, 0d, 1a, 05, 0d, 00, 16, 09, 02, 0d, 00, 0e, 1a, 02, 11, 02, 12, 09, 04, 0d, 07, 0e, 0d, 0a, 0d, 00, 0f, 11, 03, 01, 00, 02]
+Raw bytes (72): 0x[01, 01, 09, 01, 05, 01, 23, 09, 0d, 1f, 11, 01, 23, 09, 0d, 1f, 11, 01, 23, 09, 0d, 0a, 01, 04, 01, 07, 0f, 05, 07, 10, 02, 06, 02, 02, 05, 00, 06, 1f, 05, 09, 00, 0d, 1a, 05, 0d, 00, 16, 09, 02, 0d, 00, 0e, 1a, 02, 11, 02, 12, 09, 04, 0d, 07, 0e, 0d, 0a, 0d, 00, 0f, 11, 03, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 9
@@ -15,7 +15,7 @@ Number of expressions: 9
 Number of file 0 mappings: 10
 - Code(Counter(0)) at (prev + 4, 1) to (start + 7, 15)
 - Code(Counter(1)) at (prev + 7, 16) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Expression(7, Add)) at (prev + 5, 9) to (start + 0, 13)
     = (c0 + (c2 + c3))
diff --git a/tests/coverage/simple_match.coverage b/tests/coverage/simple_match.coverage
index 3a4fc6743f5..e1d5e48a2bf 100644
--- a/tests/coverage/simple_match.coverage
+++ b/tests/coverage/simple_match.coverage
@@ -11,7 +11,7 @@
    LL|      1|    if is_true {
    LL|      1|        countdown = 0;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|       |
    LL|       |    for
    LL|       |        _
diff --git a/tests/coverage/sort_groups.cov-map b/tests/coverage/sort_groups.cov-map
index 4e7ed059c87..69e13422296 100644
--- a/tests/coverage/sort_groups.cov-map
+++ b/tests/coverage/sort_groups.cov-map
@@ -1,5 +1,5 @@
 Function name: sort_groups::generic_fn::<&str>
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -7,13 +7,13 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 17, 1) to (start + 1, 12)
 - Code(Counter(1)) at (prev + 1, 13) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: sort_groups::generic_fn::<()>
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -21,13 +21,13 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 17, 1) to (start + 1, 12)
 - Code(Counter(1)) at (prev + 1, 13) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: sort_groups::generic_fn::<char>
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -35,13 +35,13 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 17, 1) to (start + 1, 12)
 - Code(Counter(1)) at (prev + 1, 13) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: sort_groups::generic_fn::<i32>
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 06, 00, 07, 01, 01, 01, 00, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 11, 01, 01, 0c, 05, 01, 0d, 02, 06, 02, 02, 05, 00, 06, 01, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -49,13 +49,13 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 17, 1) to (start + 1, 12)
 - Code(Counter(1)) at (prev + 1, 13) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: c1
 
 Function name: sort_groups::main
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 06, 01, 04, 23, 05, 04, 24, 02, 06, 02, 02, 06, 00, 07, 01, 01, 05, 02, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 06, 01, 04, 23, 05, 04, 24, 02, 06, 02, 02, 05, 00, 06, 01, 01, 05, 02, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -63,7 +63,7 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 6, 1) to (start + 4, 35)
 - Code(Counter(1)) at (prev + 4, 36) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 5) to (start + 2, 2)
 Highest counter ID seen: c1
diff --git a/tests/coverage/sort_groups.coverage b/tests/coverage/sort_groups.coverage
index 33a4d9546ce..6e8a4eda09f 100644
--- a/tests/coverage/sort_groups.coverage
+++ b/tests/coverage/sort_groups.coverage
@@ -27,7 +27,7 @@
   |   LL|      1|    if cond {
   |   LL|      1|        println!("{}", std::any::type_name::<T>());
   |   LL|      1|    }
-  |                   ^0
+  |                  ^0
   |   LL|      1|}
   ------------------
   | sort_groups::generic_fn::<()>:
diff --git a/tests/coverage/unicode.cov-map b/tests/coverage/unicode.cov-map
index ac4e691ea7a..769930110d6 100644
--- a/tests/coverage/unicode.cov-map
+++ b/tests/coverage/unicode.cov-map
@@ -1,5 +1,5 @@
 Function name: unicode::main
-Raw bytes (61): 0x[01, 01, 06, 01, 05, 16, 0d, 01, 09, 11, 13, 16, 0d, 01, 09, 09, 01, 0e, 01, 00, 0b, 05, 01, 09, 00, 0c, 03, 00, 10, 00, 1b, 05, 00, 1c, 00, 28, 01, 02, 08, 00, 25, 09, 00, 29, 00, 46, 11, 00, 47, 02, 06, 13, 02, 06, 00, 07, 0f, 02, 05, 01, 02]
+Raw bytes (61): 0x[01, 01, 06, 01, 05, 16, 0d, 01, 09, 11, 13, 16, 0d, 01, 09, 09, 01, 0e, 01, 00, 0b, 05, 01, 09, 00, 0c, 03, 00, 10, 00, 1b, 05, 00, 1c, 00, 28, 01, 02, 08, 00, 25, 09, 00, 29, 00, 46, 11, 00, 47, 02, 06, 13, 02, 05, 00, 06, 0f, 02, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 6
@@ -18,7 +18,7 @@ Number of file 0 mappings: 9
 - Code(Counter(0)) at (prev + 2, 8) to (start + 0, 37)
 - Code(Counter(2)) at (prev + 0, 41) to (start + 0, 70)
 - Code(Counter(4)) at (prev + 0, 71) to (start + 2, 6)
-- Code(Expression(4, Add)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(4, Add)) at (prev + 2, 5) to (start + 0, 6)
     = ((c0 - c2) + c3)
 - Code(Expression(3, Add)) at (prev + 2, 5) to (start + 1, 2)
     = (c4 + ((c0 - c2) + c3))
diff --git a/tests/coverage/unicode.coverage b/tests/coverage/unicode.coverage
index 305591c7062..84c5f05a8c4 100644
--- a/tests/coverage/unicode.coverage
+++ b/tests/coverage/unicode.coverage
@@ -18,7 +18,7 @@
    LL|      1|    if 申し訳ございません() && 申し訳ございません() {
                                                       ^0
    LL|      0|        println!("true");
-   LL|      1|    }
+   LL|      1|    }
    LL|       |
    LL|      1|    サビ();
    LL|      1|}
diff --git a/tests/coverage/unused.cov-map b/tests/coverage/unused.cov-map
index 9f1ad59ce83..e865ac3ee62 100644
--- a/tests/coverage/unused.cov-map
+++ b/tests/coverage/unused.cov-map
@@ -50,38 +50,38 @@ Number of file 0 mappings: 1
 Highest counter ID seen: c0
 
 Function name: unused::unused_func (unused)
-Raw bytes (24): 0x[01, 01, 00, 04, 00, 13, 01, 01, 0e, 00, 01, 0f, 02, 06, 00, 02, 06, 00, 07, 00, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 00, 13, 01, 01, 0e, 00, 01, 0f, 02, 06, 00, 02, 05, 00, 06, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 19, 1) to (start + 1, 14)
 - Code(Zero) at (prev + 1, 15) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: (none)
 
 Function name: unused::unused_func2 (unused)
-Raw bytes (24): 0x[01, 01, 00, 04, 00, 19, 01, 01, 0e, 00, 01, 0f, 02, 06, 00, 02, 06, 00, 07, 00, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 00, 19, 01, 01, 0e, 00, 01, 0f, 02, 06, 00, 02, 05, 00, 06, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 25, 1) to (start + 1, 14)
 - Code(Zero) at (prev + 1, 15) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: (none)
 
 Function name: unused::unused_func3 (unused)
-Raw bytes (24): 0x[01, 01, 00, 04, 00, 1f, 01, 01, 0e, 00, 01, 0f, 02, 06, 00, 02, 06, 00, 07, 00, 01, 01, 00, 02]
+Raw bytes (24): 0x[01, 01, 00, 04, 00, 1f, 01, 01, 0e, 00, 01, 0f, 02, 06, 00, 02, 05, 00, 06, 00, 01, 01, 00, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 0
 Number of file 0 mappings: 4
 - Code(Zero) at (prev + 31, 1) to (start + 1, 14)
 - Code(Zero) at (prev + 1, 15) to (start + 2, 6)
-- Code(Zero) at (prev + 2, 6) to (start + 0, 7)
+- Code(Zero) at (prev + 2, 5) to (start + 0, 6)
 - Code(Zero) at (prev + 1, 1) to (start + 0, 2)
 Highest counter ID seen: (none)
 
diff --git a/tests/coverage/uses_crate.coverage b/tests/coverage/uses_crate.coverage
index d001eeffd86..d1b0dadda76 100644
--- a/tests/coverage/uses_crate.coverage
+++ b/tests/coverage/uses_crate.coverage
@@ -14,7 +14,7 @@ $DIR/auxiliary/used_crate.rs:
    LL|      1|    if is_true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    use_this_lib_crate();
    LL|      1|}
    LL|       |
diff --git a/tests/coverage/uses_inline_crate.cov-map b/tests/coverage/uses_inline_crate.cov-map
index a6909768162..a482d20e3b4 100644
--- a/tests/coverage/uses_inline_crate.cov-map
+++ b/tests/coverage/uses_inline_crate.cov-map
@@ -8,7 +8,7 @@ Number of file 0 mappings: 1
 Highest counter ID seen: c0
 
 Function name: used_inline_crate::used_inline_function
-Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 14, 01, 06, 0f, 05, 06, 10, 02, 06, 02, 02, 06, 00, 07, 01, 01, 05, 01, 02]
+Raw bytes (26): 0x[01, 01, 01, 01, 05, 04, 01, 14, 01, 06, 0f, 05, 06, 10, 02, 06, 02, 02, 05, 00, 06, 01, 01, 05, 01, 02]
 Number of files: 1
 - file 0 => global file 1
 Number of expressions: 1
@@ -16,7 +16,7 @@ Number of expressions: 1
 Number of file 0 mappings: 4
 - Code(Counter(0)) at (prev + 20, 1) to (start + 6, 15)
 - Code(Counter(1)) at (prev + 6, 16) to (start + 2, 6)
-- Code(Expression(0, Sub)) at (prev + 2, 6) to (start + 0, 7)
+- Code(Expression(0, Sub)) at (prev + 2, 5) to (start + 0, 6)
     = (c0 - c1)
 - Code(Counter(0)) at (prev + 1, 5) to (start + 1, 2)
 Highest counter ID seen: c1
diff --git a/tests/coverage/uses_inline_crate.coverage b/tests/coverage/uses_inline_crate.coverage
index 832a5a6a62b..4671c95aefa 100644
--- a/tests/coverage/uses_inline_crate.coverage
+++ b/tests/coverage/uses_inline_crate.coverage
@@ -14,7 +14,7 @@ $DIR/auxiliary/used_inline_crate.rs:
    LL|      1|    if is_true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    use_this_lib_crate();
    LL|      1|}
    LL|       |
@@ -28,7 +28,7 @@ $DIR/auxiliary/used_inline_crate.rs:
    LL|      1|    if is_true {
    LL|      1|        countdown = 10;
    LL|      1|    }
-                   ^0
+                  ^0
    LL|      1|    use_this_lib_crate();
    LL|      1|}
    LL|       |
diff --git a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff
index eeeac70b5b8..cbb11d50f79 100644
--- a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff
@@ -26,18 +26,19 @@
           debug a => _9;
       }
   
++     coverage body span: $DIR/branch_match_arms.rs:14:11: 21:2 (#0)
 +     coverage ExpressionId(0) => Expression { lhs: Counter(1), op: Add, rhs: Counter(2) };
 +     coverage ExpressionId(1) => Expression { lhs: Expression(0), op: Add, rhs: Counter(3) };
 +     coverage ExpressionId(2) => Expression { lhs: Counter(0), op: Subtract, rhs: Expression(1) };
 +     coverage ExpressionId(3) => Expression { lhs: Counter(3), op: Add, rhs: Counter(2) };
 +     coverage ExpressionId(4) => Expression { lhs: Expression(3), op: Add, rhs: Counter(1) };
 +     coverage ExpressionId(5) => Expression { lhs: Expression(4), op: Add, rhs: Expression(2) };
-+     coverage Code(Counter(0)) => $DIR/branch_match_arms.rs:14:1 - 15:21;
-+     coverage Code(Counter(3)) => $DIR/branch_match_arms.rs:16:17 - 16:33;
-+     coverage Code(Counter(2)) => $DIR/branch_match_arms.rs:17:17 - 17:33;
-+     coverage Code(Counter(1)) => $DIR/branch_match_arms.rs:18:17 - 18:33;
-+     coverage Code(Expression(2)) => $DIR/branch_match_arms.rs:19:17 - 19:33;
-+     coverage Code(Expression(5)) => $DIR/branch_match_arms.rs:21:1 - 21:2;
++     coverage Code(Counter(0)) => 14:1 - 15:21;
++     coverage Code(Counter(3)) => 16:17 - 16:33;
++     coverage Code(Counter(2)) => 17:17 - 17:33;
++     coverage Code(Counter(1)) => 18:17 - 18:33;
++     coverage Code(Expression(2)) => 19:17 - 19:33;
++     coverage Code(Expression(5)) => 21:1 - 21:2;
 + 
       bb0: {
 +         Coverage::CounterIncrement(0);
diff --git a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff
index 01b01ea5c17..2efb1fd0a17 100644
--- a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff
@@ -4,7 +4,8 @@
   fn bar() -> bool {
       let mut _0: bool;
   
-+     coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:19:1 - 21:2;
++     coverage body span: $DIR/instrument_coverage.rs:19:18: 21:2 (#0)
++     coverage Code(Counter(0)) => 19:1 - 21:2;
 + 
       bb0: {
 +         Coverage::CounterIncrement(0);
diff --git a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff
index a594c44c316..a179824d6c7 100644
--- a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff
@@ -7,12 +7,13 @@
       let mut _2: bool;
       let mut _3: !;
   
++     coverage body span: $DIR/instrument_coverage.rs:10:11: 16:2 (#0)
 +     coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Add, rhs: Counter(1) };
-+     coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:10:1 - 10:11;
-+     coverage Code(Expression(0)) => $DIR/instrument_coverage.rs:12:12 - 12:17;
-+     coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:13:13 - 13:18;
-+     coverage Code(Counter(1)) => $DIR/instrument_coverage.rs:14:10 - 14:11;
-+     coverage Code(Counter(0)) => $DIR/instrument_coverage.rs:16:1 - 16:2;
++     coverage Code(Counter(0)) => 10:1 - 10:11;
++     coverage Code(Expression(0)) => 12:12 - 12:17;
++     coverage Code(Counter(0)) => 13:13 - 13:18;
++     coverage Code(Counter(1)) => 14:9 - 14:10;
++     coverage Code(Counter(0)) => 16:1 - 16:2;
 + 
       bb0: {
 +         Coverage::CounterIncrement(0);
diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff
index efb1559baf5..082539369f7 100644
--- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff
+++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff
@@ -7,12 +7,13 @@
   
       coverage branch { true: BlockMarkerId(0), false: BlockMarkerId(1) } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0)
   
+      coverage body span: $DIR/instrument_coverage_cleanup.rs:13:11: 15:2 (#0)
       coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Subtract, rhs: Counter(1) };
-      coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:13:1 - 14:36;
-      coverage Code(Expression(0)) => $DIR/instrument_coverage_cleanup.rs:14:37 - 14:39;
-      coverage Code(Counter(1)) => $DIR/instrument_coverage_cleanup.rs:14:39 - 14:40;
-      coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:15:1 - 15:2;
-      coverage Branch { true_term: Expression(0), false_term: Counter(1) } => $DIR/instrument_coverage_cleanup.rs:14:8 - 14:36;
+      coverage Code(Counter(0)) => 13:1 - 14:36;
+      coverage Code(Expression(0)) => 14:37 - 14:39;
+      coverage Code(Counter(1)) => 14:38 - 14:39;
+      coverage Code(Counter(0)) => 15:1 - 15:2;
+      coverage Branch { true_term: Expression(0), false_term: Counter(1) } => 14:8 - 14:36;
   
       bb0: {
           Coverage::CounterIncrement(0);
diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff
index a0fe9a5c05c..8635818c6a7 100644
--- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff
+++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff
@@ -7,12 +7,13 @@
   
       coverage branch { true: BlockMarkerId(0), false: BlockMarkerId(1) } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0)
   
++     coverage body span: $DIR/instrument_coverage_cleanup.rs:13:11: 15:2 (#0)
 +     coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Subtract, rhs: Counter(1) };
-+     coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:13:1 - 14:36;
-+     coverage Code(Expression(0)) => $DIR/instrument_coverage_cleanup.rs:14:37 - 14:39;
-+     coverage Code(Counter(1)) => $DIR/instrument_coverage_cleanup.rs:14:39 - 14:40;
-+     coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:15:1 - 15:2;
-+     coverage Branch { true_term: Expression(0), false_term: Counter(1) } => $DIR/instrument_coverage_cleanup.rs:14:8 - 14:36;
++     coverage Code(Counter(0)) => 13:1 - 14:36;
++     coverage Code(Expression(0)) => 14:37 - 14:39;
++     coverage Code(Counter(1)) => 14:38 - 14:39;
++     coverage Code(Counter(0)) => 15:1 - 15:2;
++     coverage Branch { true_term: Expression(0), false_term: Counter(1) } => 14:8 - 14:36;
 + 
       bb0: {
 +         Coverage::CounterIncrement(0);