resolve: Replace visibility table in resolver outputs with query feeding

Also feed missing visibilities for import stems and trait impl items, which were previously evaluated lazily.

compiler/rustc_middle/src/ty/mod.rs

@@ -152,7 +152,7 @@ pub struct ResolverOutputs {
 
 #[derive(Debug)]
 pub struct ResolverGlobalCtxt {
-    pub visibilities: FxHashMap<LocalDefId, Visibility>,
+    pub visibilities_for_hashing: Vec<(LocalDefId, Visibility)>,
     /// Item with a given `LocalDefId` was defined during macro expansion with ID `ExpnId`.
     pub expn_that_defined: FxHashMap<LocalDefId, ExpnId>,
     pub effective_visibilities: EffectiveVisibilities,