Replace a number of FxHashMaps/Sets with stable-iteration-order alternatives.

2 files changed, 5 insertions, 3 deletions

diff --git a/compiler/rustc_hir_analysis/src/astconv/errors.rs b/compiler/rustc_hir_analysis/src/astconv/errors.rs
index f17f19bb77c..7254f066dce 100644
--- a/compiler/rustc_hir_analysis/src/astconv/errors.rs
+++ b/compiler/rustc_hir_analysis/src/astconv/errors.rs
@@ -6,6 +6,7 @@ use crate::errors::{
 use crate::fluent_generated as fluent;
 use crate::traits::error_reporting::report_object_safety_error;
 use rustc_data_structures::fx::{FxHashMap, FxIndexMap, FxIndexSet};
+use rustc_data_structures::unord::UnordMap;
 use rustc_errors::{pluralize, struct_span_err, Applicability, Diagnostic, ErrorGuaranteed};
 use rustc_hir as hir;
 use rustc_hir::def_id::{DefId, LocalDefId};
@@ -673,7 +674,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                 }))
             })
             .flatten()
-            .collect::<FxHashMap<Symbol, &ty::AssocItem>>();
+            .collect::<UnordMap<Symbol, &ty::AssocItem>>();
 
         let mut names = names
             .into_iter()
@@ -709,7 +710,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
         let mut where_constraints = vec![];
         let mut already_has_generics_args_suggestion = false;
         for (span, assoc_items) in &associated_types {
-            let mut names: FxHashMap<_, usize> = FxHashMap::default();
+            let mut names: UnordMap<_, usize> = Default::default();
             for item in assoc_items {
                 types_count += 1;
                 *names.entry(item.name).or_insert(0) += 1;
diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs
index 8aeab2ca67e..0a13949a688 100644
--- a/compiler/rustc_hir_analysis/src/collect.rs
+++ b/compiler/rustc_hir_analysis/src/collect.rs
@@ -16,6 +16,7 @@
 
 use rustc_data_structures::captures::Captures;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
+use rustc_data_structures::unord::UnordMap;
 use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed, StashKey};
 use rustc_hir as hir;
 use rustc_hir::def::DefKind;
@@ -979,7 +980,7 @@ fn trait_def(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::TraitDef {
         })
         // Check for duplicates
         .and_then(|list| {
-            let mut set: FxHashMap<Symbol, Span> = FxHashMap::default();
+            let mut set: UnordMap<Symbol, Span> = Default::default();
             let mut no_dups = true;
 
             for ident in &*list {