Remove `extern crate rustc_middle` from numerous crates.

8 files changed, 7 insertions, 2 deletions

diff --git a/compiler/rustc_lint/src/array_into_iter.rs b/compiler/rustc_lint/src/array_into_iter.rs
index ce5f3052e2a..8f4bae33957 100644
--- a/compiler/rustc_lint/src/array_into_iter.rs
+++ b/compiler/rustc_lint/src/array_into_iter.rs
@@ -3,6 +3,7 @@ use crate::{
     LateContext, LateLintPass, LintContext,
 };
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::ty;
 use rustc_middle::ty::adjustment::{Adjust, Adjustment};
 use rustc_session::lint::FutureIncompatibilityReason;
diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs
index 9b7e740d883..ba316e5eeb0 100644
--- a/compiler/rustc_lint/src/builtin.rs
+++ b/compiler/rustc_lint/src/builtin.rs
@@ -51,6 +51,7 @@ use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::{DefId, LocalDefId, CRATE_DEF_ID};
 use rustc_hir::intravisit::FnKind as HirFnKind;
 use rustc_hir::{Body, FnDecl, GenericParamKind, Node, PatKind, PredicateOrigin};
+use rustc_middle::bug;
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty::layout::LayoutOf;
 use rustc_middle::ty::print::with_no_trimmed_paths;
diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs
index d1dcfc524b5..64197a7ec69 100644
--- a/compiler/rustc_lint/src/context.rs
+++ b/compiler/rustc_lint/src/context.rs
@@ -27,6 +27,7 @@ use rustc_hir as hir;
 use rustc_hir::def::Res;
 use rustc_hir::def_id::{CrateNum, DefId};
 use rustc_hir::definitions::{DefPathData, DisambiguatedDefPathData};
+use rustc_middle::bug;
 use rustc_middle::middle::privacy::EffectiveVisibilities;
 use rustc_middle::ty::layout::{LayoutError, LayoutOfHelpers, TyAndLayout};
 use rustc_middle::ty::print::{with_no_trimmed_paths, PrintError};
diff --git a/compiler/rustc_lint/src/context/diagnostics/check_cfg.rs b/compiler/rustc_lint/src/context/diagnostics/check_cfg.rs
index 0472525d49a..e9a6276192e 100644
--- a/compiler/rustc_lint/src/context/diagnostics/check_cfg.rs
+++ b/compiler/rustc_lint/src/context/diagnostics/check_cfg.rs
@@ -1,4 +1,5 @@
 use rustc_errors::{Applicability, Diag};
+use rustc_middle::bug;
 use rustc_session::{config::ExpectedValues, Session};
 use rustc_span::edit_distance::find_best_match_for_name;
 use rustc_span::{sym, Span, Symbol};
diff --git a/compiler/rustc_lint/src/levels.rs b/compiler/rustc_lint/src/levels.rs
index 5bb2942ad4b..12b3d1d2f9e 100644
--- a/compiler/rustc_lint/src/levels.rs
+++ b/compiler/rustc_lint/src/levels.rs
@@ -22,6 +22,7 @@ use rustc_hir as hir;
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::HirId;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::lint::{
     lint_level, reveal_actual_level, LevelAndSource, LintExpectation, LintLevelSource,
diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs
index 901c9b19ba3..a78b410f500 100644
--- a/compiler/rustc_lint/src/lib.rs
+++ b/compiler/rustc_lint/src/lib.rs
@@ -40,8 +40,6 @@
 #![allow(internal_features)]
 
 #[macro_use]
-extern crate rustc_middle;
-#[macro_use]
 extern crate tracing;
 
 mod array_into_iter;
diff --git a/compiler/rustc_lint/src/non_fmt_panic.rs b/compiler/rustc_lint/src/non_fmt_panic.rs
index 6527e10c580..a6057afcbd6 100644
--- a/compiler/rustc_lint/src/non_fmt_panic.rs
+++ b/compiler/rustc_lint/src/non_fmt_panic.rs
@@ -4,6 +4,7 @@ use rustc_ast as ast;
 use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_infer::infer::TyCtxtInferExt;
+use rustc_middle::bug;
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty;
 use rustc_parse_format::{ParseMode, Parser, Piece};
diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs
index ff4e3141f1f..13b6054586c 100644
--- a/compiler/rustc_lint/src/types.rs
+++ b/compiler/rustc_lint/src/types.rs
@@ -17,6 +17,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_errors::DiagMessage;
 use rustc_hir as hir;
 use rustc_hir::{is_range_literal, Expr, ExprKind, Node};
+use rustc_middle::bug;
 use rustc_middle::ty::layout::{IntegerExt, LayoutOf, SizeSkeleton};
 use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{