Remove extern crate rustc_macros from rustc_middle.

compiler/rustc_middle/src/middle/codegen_fn_attrs.rs

@@ -1,5 +1,6 @@
 use crate::mir::mono::Linkage;
 use rustc_attr::{InlineAttr, InstructionSetAttr, OptimizeAttr};
+use rustc_macros::{HashStable, TyDecodable, TyEncodable};
 use rustc_span::symbol::Symbol;
 use rustc_target::abi::Align;
 use rustc_target::spec::SanitizerSet;

compiler/rustc_middle/src/middle/debugger_visualizer.rs

@@ -1,4 +1,5 @@
 use rustc_data_structures::sync::Lrc;
+use rustc_macros::{Decodable, Encodable, HashStable};
 use std::path::PathBuf;
 
 #[derive(HashStable)]

compiler/rustc_middle/src/middle/dependency_format.rs

@@ -4,6 +4,7 @@
 //! For all the gory details, see the provider of the `dependency_formats`
 //! query.
 
+use rustc_macros::{Decodable, Encodable, HashStable};
 use rustc_session::config::CrateType;
 
 /// A list of dependencies for a certain crate type.

compiler/rustc_middle/src/middle/exported_symbols.rs

@@ -1,7 +1,7 @@
 use crate::ty::GenericArgsRef;
 use crate::ty::{self, Ty, TyCtxt};
 use rustc_hir::def_id::{DefId, LOCAL_CRATE};
-use rustc_macros::HashStable;
+use rustc_macros::{Decodable, Encodable, HashStable, TyDecodable, TyEncodable};
 
 /// The SymbolExportLevel of a symbols specifies from which kinds of crates
 /// the symbol will be exported. `C` symbols will be exported from any

compiler/rustc_middle/src/middle/mod.rs

@@ -5,6 +5,7 @@ pub mod exported_symbols;
 pub mod lang_items;
 pub mod lib_features {
     use rustc_data_structures::unord::UnordMap;
+    use rustc_macros::{HashStable, TyDecodable, TyEncodable};
     use rustc_span::{symbol::Symbol, Span};
 
     #[derive(Copy, Clone, Debug, PartialEq, Eq)]

compiler/rustc_middle/src/middle/region.rs

@@ -11,7 +11,7 @@ use rustc_data_structures::fx::FxIndexMap;
 use rustc_data_structures::unord::UnordMap;
 use rustc_hir as hir;
 use rustc_hir::{HirId, HirIdMap, Node};
-use rustc_macros::HashStable;
+use rustc_macros::{HashStable, TyDecodable, TyEncodable};
 use rustc_span::{Span, DUMMY_SP};
 
 use std::fmt;

compiler/rustc_middle/src/middle/resolve_bound_vars.rs

@@ -6,7 +6,7 @@ use rustc_data_structures::fx::FxIndexMap;
 use rustc_errors::ErrorGuaranteed;
 use rustc_hir::def_id::DefId;
 use rustc_hir::{ItemLocalId, OwnerId};
-use rustc_macros::HashStable;
+use rustc_macros::{Decodable, Encodable, HashStable, TyDecodable, TyEncodable};
 
 #[derive(Clone, Copy, PartialEq, Eq, Hash, TyEncodable, TyDecodable, Debug, HashStable)]
 pub enum ResolvedArg {

compiler/rustc_middle/src/middle/stability.rs

@@ -14,6 +14,7 @@ use rustc_feature::GateIssue;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{DefId, LocalDefId, LocalDefIdMap};
 use rustc_hir::{self as hir, HirId};
+use rustc_macros::{Decodable, Encodable, HashStable};
 use rustc_middle::ty::print::with_no_trimmed_paths;
 use rustc_session::lint::builtin::{DEPRECATED, DEPRECATED_IN_FUTURE, SOFT_UNSTABLE};
 use rustc_session::lint::{BuiltinLintDiag, Level, Lint, LintBuffer};