Remove extern crate rustc_middle from numerous crates.

Author: nnethercote

compiler/rustc_borrowck/src/borrow_set.rs

@@ -6,6 +6,7 @@ use rustc_index::bit_set::BitSet;
 use rustc_middle::mir::traversal;
 use rustc_middle::mir::visit::{MutatingUseContext, NonUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::{self, Body, Local, Location};
+use rustc_middle::span_bug;
 use rustc_middle::ty::{RegionVid, TyCtxt};
 use rustc_mir_dataflow::move_paths::MoveData;
 use std::fmt;

compiler/rustc_borrowck/src/borrowck_errors.rs

@@ -2,6 +2,7 @@
 #![allow(rustc::untranslatable_diagnostic)]
 
 use rustc_errors::{codes::*, struct_span_code_err, Diag, DiagCtxt};
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::Span;
 

compiler/rustc_borrowck/src/def_use.rs

@@ -1,3 +1,4 @@
+use rustc_middle::bug;
 use rustc_middle::mir::visit::{
     MutatingUseContext, NonMutatingUseContext, NonUseContext, PlaceContext,
 };

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -13,6 +13,7 @@ use rustc_hir::def::{DefKind, Res};
 use rustc_hir::intravisit::{walk_block, walk_expr, Map, Visitor};
 use rustc_hir::{CoroutineDesugaring, PatField};
 use rustc_hir::{CoroutineKind, CoroutineSource, LangItem};
+use rustc_middle::bug;
 use rustc_middle::hir::nested_filter::OnlyBodies;
 use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::{

compiler/rustc_borrowck/src/diagnostics/mod.rs

@@ -12,6 +12,7 @@ use rustc_hir::CoroutineKind;
 use rustc_index::IndexSlice;
 use rustc_infer::infer::BoundRegionConversionTime;
 use rustc_infer::traits::{FulfillmentErrorCode, SelectionError};
+use rustc_middle::bug;
 use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::{
     AggregateKind, CallSource, ConstOperand, FakeReadCause, Local, LocalInfo, LocalKind, Location,

compiler/rustc_borrowck/src/diagnostics/move_errors.rs

@@ -4,6 +4,7 @@
 use rustc_errors::{Applicability, Diag};
 use rustc_hir::intravisit::Visitor;
 use rustc_hir::{CaptureBy, ExprKind, HirId, Node};
+use rustc_middle::bug;
 use rustc_middle::mir::*;
 use rustc_middle::ty::{self, Ty};
 use rustc_mir_dataflow::move_paths::{LookupResult, MovePathIndex};

compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs

@@ -7,6 +7,7 @@ use rustc_errors::{Applicability, Diag};
 use rustc_hir::intravisit::Visitor;
 use rustc_hir::{self as hir, BindingMode, ByRef, Node};
 use rustc_infer::traits;
+use rustc_middle::bug;
 use rustc_middle::mir::{Mutability, Place, PlaceRef, ProjectionElem};
 use rustc_middle::ty::{self, InstanceDef, ToPredicate, Ty, TyCtxt};
 use rustc_middle::{

compiler/rustc_borrowck/src/diagnostics/region_errors.rs

@@ -18,6 +18,7 @@ use rustc_infer::infer::{
     error_reporting::unexpected_hidden_region_diagnostic,
     NllRegionVariableOrigin, RelateParamBound,
 };
+use rustc_middle::bug;
 use rustc_middle::hir::place::PlaceBase;
 use rustc_middle::mir::{ConstraintCategory, ReturnConstraint};
 use rustc_middle::ty::GenericArgs;

compiler/rustc_borrowck/src/diagnostics/region_name.rs

@@ -11,6 +11,7 @@ use rustc_hir::def::{DefKind, Res};
 use rustc_middle::ty::print::RegionHighlightMode;
 use rustc_middle::ty::{self, RegionVid, Ty};
 use rustc_middle::ty::{GenericArgKind, GenericArgsRef};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{Span, DUMMY_SP};
 

compiler/rustc_borrowck/src/lib.rs

@@ -14,8 +14,6 @@
 #![feature(stmt_expr_attributes)]
 #![feature(try_blocks)]
 
-#[macro_use]
-extern crate rustc_middle;
 #[macro_use]
 extern crate tracing;
 
@@ -33,6 +31,7 @@ use rustc_middle::mir::tcx::PlaceTy;
 use rustc_middle::mir::*;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, ParamEnv, RegionVid, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint::builtin::UNUSED_MUT;
 use rustc_span::{Span, Symbol};
 use rustc_target::abi::FieldIdx;