Remove extern crate rustc_middle from rustc_mir_build.

compiler/rustc_mir_build/src/build/block.rs

@@ -1,6 +1,7 @@
 use crate::build::ForGuard::OutsideGuard;
 use crate::build::{BlockAnd, BlockAndExtension, BlockFrame, Builder};
 use rustc_middle::middle::region::Scope;
+use rustc_middle::span_bug;
 use rustc_middle::thir::*;
 use rustc_middle::{mir::*, ty};
 use rustc_span::Span;

compiler/rustc_mir_build/src/build/coverageinfo/mcdc.rs

@@ -1,5 +1,6 @@
 use std::collections::VecDeque;
 
+use rustc_middle::bug;
 use rustc_middle::mir::coverage::{
     BlockMarkerId, ConditionId, ConditionInfo, MCDCBranchSpan, MCDCDecisionSpan,
 };

compiler/rustc_mir_build/src/build/custom/mod.rs

@@ -24,6 +24,7 @@ use rustc_hir::HirId;
 use rustc_index::{IndexSlice, IndexVec};
 use rustc_middle::{
     mir::*,
+    span_bug,
     thir::*,
     ty::{ParamEnv, Ty, TyCtxt},
 };

compiler/rustc_mir_build/src/build/expr/as_constant.rs

@@ -9,6 +9,7 @@ use rustc_middle::thir::*;
 use rustc_middle::ty::{
     self, CanonicalUserType, CanonicalUserTypeAnnotation, TyCtxt, UserTypeAnnotationIndex,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::Size;
 
 impl<'a, 'tcx> Builder<'a, 'tcx> {

compiler/rustc_mir_build/src/build/expr/as_place.rs

@@ -4,6 +4,7 @@ use crate::build::expr::category::Category;
 use crate::build::ForGuard::{OutsideGuard, RefWithinGuard};
 use crate::build::{BlockAnd, BlockAndExtension, Builder, Capture, CaptureMap};
 use rustc_hir::def_id::LocalDefId;
+use rustc_middle::bug;
 use rustc_middle::hir::place::Projection as HirProjection;
 use rustc_middle::hir::place::ProjectionKind as HirProjectionKind;
 use rustc_middle::middle::region;

compiler/rustc_mir_build/src/build/expr/as_rvalue.rs

@@ -9,6 +9,7 @@ use crate::build::expr::as_place::PlaceBase;
 use crate::build::expr::category::{Category, RvalueFunc};
 use crate::build::{BlockAnd, BlockAndExtension, Builder, NeedsTemporary};
 use rustc_hir::lang_items::LangItem;
+use rustc_middle::bug;
 use rustc_middle::middle::region;
 use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::mir::*;

compiler/rustc_mir_build/src/build/expr/into.rs

@@ -7,6 +7,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stack::ensure_sufficient_stack;
 use rustc_hir as hir;
 use rustc_middle::mir::*;
+use rustc_middle::span_bug;
 use rustc_middle::thir::*;
 use rustc_middle::ty::CanonicalUserTypeAnnotation;
 use rustc_span::source_map::Spanned;

compiler/rustc_mir_build/src/build/matches/mod.rs

@@ -12,6 +12,7 @@ use crate::build::{BlockAnd, BlockAndExtension, Builder};
 use crate::build::{GuardFrame, GuardFrameLocal, LocalsForNode};
 use rustc_data_structures::{fx::FxIndexMap, stack::ensure_sufficient_stack};
 use rustc_hir::{BindingMode, ByRef};
+use rustc_middle::bug;
 use rustc_middle::middle::region;
 use rustc_middle::mir::{self, *};
 use rustc_middle::thir::{self, *};

compiler/rustc_mir_build/src/build/matches/test.rs

@@ -13,6 +13,7 @@ use rustc_middle::mir::*;
 use rustc_middle::ty::util::IntTypeExt;
 use rustc_middle::ty::GenericArg;
 use rustc_middle::ty::{self, adjustment::PointerCoercion, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::DefId;
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::{sym, Symbol};

compiler/rustc_mir_build/src/build/mod.rs

@@ -20,6 +20,7 @@ use rustc_middle::mir::*;
 use rustc_middle::query::TyCtxtAt;
 use rustc_middle::thir::{self, ExprId, LintLevel, LocalVarId, Param, ParamId, PatKind, Thir};
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::sym;
 use rustc_span::Span;
 use rustc_span::Symbol;

compiler/rustc_mir_build/src/build/scope.rs

@@ -90,6 +90,7 @@ use rustc_index::{IndexSlice, IndexVec};
 use rustc_middle::middle::region;
 use rustc_middle::mir::*;
 use rustc_middle::thir::{ExprId, LintLevel};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint::Level;
 use rustc_span::source_map::Spanned;
 use rustc_span::{Span, DUMMY_SP};

compiler/rustc_mir_build/src/check_unsafety.rs

@@ -4,6 +4,7 @@ use crate::errors::*;
 use rustc_errors::DiagArgValue;
 use rustc_hir::{self as hir, BindingMode, ByRef, HirId, Mutability};
 use rustc_middle::mir::BorrowKind;
+use rustc_middle::span_bug;
 use rustc_middle::thir::visit::Visitor;
 use rustc_middle::thir::*;
 use rustc_middle::ty::print::with_no_trimmed_paths;

compiler/rustc_mir_build/src/lib.rs

@@ -12,8 +12,6 @@
 
 #[macro_use]
 extern crate tracing;
-#[macro_use]
-extern crate rustc_middle;
 
 mod build;
 mod check_unsafety;

compiler/rustc_mir_build/src/thir/constant.rs

@@ -1,4 +1,5 @@
 use rustc_ast as ast;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
 use rustc_middle::ty::{self, ParamEnv, ScalarInt, TyCtxt};
 

compiler/rustc_mir_build/src/thir/cx/expr.rs

@@ -21,6 +21,7 @@ use rustc_middle::ty::GenericArgs;
 use rustc_middle::ty::{
     self, AdtKind, InlineConstArgs, InlineConstArgsParts, ScalarInt, Ty, UpvarArgs, UserType,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_span::source_map::Spanned;
 use rustc_span::{sym, Span, DUMMY_SP};
 use rustc_target::abi::{FieldIdx, FIRST_VARIANT};

compiler/rustc_mir_build/src/thir/cx/mod.rs

@@ -13,6 +13,7 @@ use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::lang_items::LangItem;
 use rustc_hir::HirId;
 use rustc_hir::Node;
+use rustc_middle::bug;
 use rustc_middle::middle::region;
 use rustc_middle::thir::*;
 use rustc_middle::ty::{self, RvalueScopes, TyCtxt};

compiler/rustc_mir_build/src/thir/pattern/check_match.rs

@@ -1,9 +1,3 @@
-use rustc_pattern_analysis::errors::Uncovered;
-use rustc_pattern_analysis::rustc::{
-    Constructor, DeconstructedPat, MatchArm, RustcPatCtxt as PatCtxt, Usefulness, UsefulnessReport,
-    WitnessPat,
-};
-
 use crate::errors::*;
 
 use rustc_arena::{DroplessArena, TypedArena};
@@ -14,11 +8,17 @@ use rustc_errors::{codes::*, struct_span_code_err, Applicability, ErrorGuarantee
 use rustc_hir::def::*;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::{self as hir, BindingMode, ByRef, HirId};
+use rustc_middle::bug;
 use rustc_middle::middle::limits::get_limit_size;
 use rustc_middle::thir::visit::Visitor;
 use rustc_middle::thir::*;
 use rustc_middle::ty::print::with_no_trimmed_paths;
 use rustc_middle::ty::{self, AdtDef, Ty, TyCtxt};
+use rustc_pattern_analysis::errors::Uncovered;
+use rustc_pattern_analysis::rustc::{
+    Constructor, DeconstructedPat, MatchArm, RustcPatCtxt as PatCtxt, Usefulness, UsefulnessReport,
+    WitnessPat,
+};
 use rustc_session::lint::builtin::{
     BINDINGS_WITH_VARIANT_NAME, IRREFUTABLE_LET_PATTERNS, UNREACHABLE_PATTERNS,
 };

compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs

@@ -4,6 +4,7 @@ use rustc_index::Idx;
 use rustc_infer::infer::{InferCtxt, TyCtxtInferExt};
 use rustc_infer::traits::Obligation;
 use rustc_middle::mir;
+use rustc_middle::span_bug;
 use rustc_middle::thir::{FieldPat, Pat, PatKind};
 use rustc_middle::ty::{self, Ty, TyCtxt, ValTree};
 use rustc_session::lint;

compiler/rustc_mir_build/src/thir/pattern/mod.rs

@@ -20,6 +20,7 @@ use rustc_middle::thir::{
 };
 use rustc_middle::ty::layout::IntegerExt;
 use rustc_middle::ty::{self, CanonicalUserTypeAnnotation, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::{ErrorGuaranteed, Span};
 use rustc_target::abi::{FieldIdx, Integer};

compiler/rustc_mir_build/src/thir/util.rs

@@ -1,4 +1,5 @@
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, CanonicalUserType, TyCtxt, UserType};
 
 pub(crate) trait UserAnnotatedTyHelpers<'tcx> {