Auto merge of #14875 - ponyii:fix/implement-missing-members-do-not-transform-lifetimes, r=Veykril

fix: implemeted lifetime transformation fot assits

A part of https://github.com/rust-lang/rust-analyzer/issues/13363
I expect to implement transformation of const params in a separate PR

Other assists and a completion affected:
- `generate_function` currently just ignores lifetimes and, consequently, is not affected
- `inline_call` and `replace_derive_with...` don't seem to need lifetime transformation
- `trait_impl` (a completion) is fixed and tested

crates/hir/src/lib.rs

@@ -2641,14 +2641,22 @@ impl GenericDef {
                 Either::Right(x) => GenericParam::TypeParam(x),
             }
         });
-        let lt_params = generics
+        self.lifetime_params(db)
+            .into_iter()
+            .map(GenericParam::LifetimeParam)
+            .chain(ty_params)
+            .collect()
+    }
+
+    pub fn lifetime_params(self, db: &dyn HirDatabase) -> Vec<LifetimeParam> {
+        let generics = db.generic_params(self.into());
+        generics
             .lifetimes
             .iter()
             .map(|(local_id, _)| LifetimeParam {
                 id: LifetimeParamId { parent: self.into(), local_id },
             })
-            .map(GenericParam::LifetimeParam);
-        lt_params.chain(ty_params).collect()
+            .collect()
     }
 
     pub fn type_params(self, db: &dyn HirDatabase) -> Vec<TypeOrConstParam> {