Auto merge of #119093 - michaelwoerister:mcp533-18, r=petrochenkov

Replace some instances of FxHashMap/FxHashSet with stable alternatives (mostly in rustc_hir and rustc_ast_lowering)

Part of https://github.com/rust-lang/compiler-team/issues/533. We should be getting close to being able to remove the HashStable impl of HashMap.

compiler/rustc_middle/src/query/mod.rs

@@ -69,7 +69,7 @@ use rustc_hir::def_id::{
     CrateNum, DefId, DefIdMap, DefIdSet, LocalDefId, LocalDefIdMap, LocalDefIdSet, LocalModDefId,
 };
 use rustc_hir::lang_items::{LangItem, LanguageItems};
-use rustc_hir::{Crate, ItemLocalId, TraitCandidate};
+use rustc_hir::{Crate, ItemLocalId, ItemLocalMap, TraitCandidate};
 use rustc_index::IndexVec;
 use rustc_query_system::ich::StableHashingContext;
 use rustc_query_system::query::{try_get_cached, CacheSelector, QueryCache, QueryMode, QueryState};
@@ -1490,7 +1490,7 @@ rustc_queries! {
         desc { "computing whether impls specialize one another" }
     }
     query in_scope_traits_map(_: hir::OwnerId)
-        -> Option<&'tcx FxHashMap<ItemLocalId, Box<[TraitCandidate]>>> {
+        -> Option<&'tcx ItemLocalMap<Box<[TraitCandidate]>>> {
         desc { "getting traits in scope at a block" }
     }
 

compiler/rustc_middle/src/ty/mod.rs

@@ -192,7 +192,7 @@ pub struct ResolverAstLowering {
 
     pub next_node_id: ast::NodeId,
 
-    pub node_id_to_def_id: FxHashMap<ast::NodeId, LocalDefId>,
+    pub node_id_to_def_id: NodeMap<LocalDefId>,
     pub def_id_to_node_id: IndexVec<LocalDefId, ast::NodeId>,
 
     pub trait_map: NodeMap<Vec<hir::TraitCandidate>>,