Auto merge of #117444 - matthiaskrgr:rollup-43s0spc, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #116267 (Some codegen cleanups around SIMD checks)
 - #116712 (When encountering unclosed delimiters during lexing, check for diff markers)
 - #117416 (Also consider TAIT to be uncomputable if the MIR body is tainted)
 - #117421 (coverage: Replace impossible `coverage::Error` with assertions)
 - #117438 (Do not ICE on constant evaluation failure in GVN.)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 2 insertions, 4 deletions

diff --git a/compiler/rustc_mir_transform/src/coverage/tests.rs b/compiler/rustc_mir_transform/src/coverage/tests.rs
index 795cbce963d..702fe5f563e 100644
--- a/compiler/rustc_mir_transform/src/coverage/tests.rs
+++ b/compiler/rustc_mir_transform/src/coverage/tests.rs
@@ -647,15 +647,13 @@ fn test_traverse_coverage_with_loops() {
 fn test_make_bcb_counters() {
     rustc_span::create_default_session_globals_then(|| {
         let mir_body = goto_switchint();
-        let mut basic_coverage_blocks = graph::CoverageGraph::from_mir(&mir_body);
+        let basic_coverage_blocks = graph::CoverageGraph::from_mir(&mir_body);
         // Historically this test would use `spans` internals to set up fake
         // coverage spans for BCBs 1 and 2. Now we skip that step and just tell
         // BCB counter construction that those BCBs have spans.
         let bcb_has_coverage_spans = |bcb: BasicCoverageBlock| (1..=2).contains(&bcb.as_usize());
         let mut coverage_counters = counters::CoverageCounters::new(&basic_coverage_blocks);
-        coverage_counters
-            .make_bcb_counters(&mut basic_coverage_blocks, bcb_has_coverage_spans)
-            .expect("should be Ok");
+        coverage_counters.make_bcb_counters(&basic_coverage_blocks, bcb_has_coverage_spans);
         assert_eq!(coverage_counters.num_expressions(), 0);
 
         let_bcb!(1);