Use a path instead of an ident (and stop manually resolving)

compiler/rustc_ast/src/ast.rs

@@ -2188,12 +2188,12 @@ pub enum TraitObjectSyntax {
     None,
 }
 
-#[derive(Clone, PartialEq, Encodable, Decodable, Debug)]
+#[derive(Clone, Encodable, Decodable, Debug)]
 pub enum PreciseCapturingArg {
     /// Lifetime parameter
     Lifetime(Lifetime),
     /// Type or const parameter
-    Arg(Ident, NodeId),
+    Arg(Path, NodeId),
 }
 
 /// Inline assembly operand explicit register or register class.

compiler/rustc_ast/src/mut_visit.rs

@@ -928,8 +928,8 @@ pub fn noop_visit_precise_capturing_arg<T: MutVisitor>(arg: &mut PreciseCapturin
         PreciseCapturingArg::Lifetime(lt) => {
             vis.visit_lifetime(lt);
         }
-        PreciseCapturingArg::Arg(ident, id) => {
-            vis.visit_ident(ident);
+        PreciseCapturingArg::Arg(path, id) => {
+            vis.visit_path(path);
             vis.visit_id(id);
         }
     }

compiler/rustc_ast/src/visit.rs

@@ -653,8 +653,8 @@ pub fn walk_precise_capturing_arg<'a, V: Visitor<'a>>(
         PreciseCapturingArg::Lifetime(lt) => {
             visitor.visit_lifetime(lt, LifetimeCtxt::GenericArg);
         }
-        PreciseCapturingArg::Arg(ident, _) => {
-            visitor.visit_ident(*ident);
+        PreciseCapturingArg::Arg(path, id) => {
+            visitor.visit_path(path, *id);
         }
     }
 }