Merge #6862

6862: Add LifetimeParam resolving to Semantics r=matklad a=Veykril

This is stuff required for the lifetime references/definitions PR. I pulled this out to make it easier to review as well as because there is one thing that still has to be addressed which can be found in the review comments.

Co-authored-by: Lukas Wirth <[email protected]>

1 files changed, 2 insertions, 3 deletions

diff --git a/crates/hir_def/src/item_tree/lower.rs b/crates/hir_def/src/item_tree/lower.rs
index f7ce2e26d..2939c6b1e 100644
--- a/crates/hir_def/src/item_tree/lower.rs
+++ b/crates/hir_def/src/item_tree/lower.rs
@@ -2,7 +2,6 @@
 
 use std::{collections::hash_map::Entry, mem, sync::Arc};
 
-use arena::map::ArenaMap;
 use hir_expand::{ast_id_map::AstIdMap, hygiene::Hygiene, name::known, HirFileId};
 use smallvec::SmallVec;
 use syntax::{
@@ -607,7 +606,7 @@ impl Ctx {
         owner: GenericsOwner<'_>,
         node: &impl ast::GenericParamsOwner,
     ) -> GenericParamsId {
-        let mut sm = &mut ArenaMap::default();
+        let mut sm = &mut Default::default();
         let mut generics = GenericParams::default();
         match owner {
             GenericsOwner::Function(func) => {
@@ -630,7 +629,7 @@ impl Ctx {
                     default: None,
                     provenance: TypeParamProvenance::TraitSelf,
                 });
-                sm.insert(self_param_id, Either::Left(trait_def.clone()));
+                sm.type_params.insert(self_param_id, Either::Left(trait_def.clone()));
                 // add super traits as bounds on Self
                 // i.e., trait Foo: Bar is equivalent to trait Foo where Self: Bar
                 let self_param = TypeRef::Path(name![Self].into());