cleanup

Author: xonx4l

compiler/rustc_error_codes/src/error_codes/E0412.md

@@ -1,4 +1,4 @@
-This error code is no longer emitted by the compiler.
+#### Note: this error code is no longer emitted by the compiler.
 
 Unresolved types are now reported under the unified error code E0425
 ("cannot find ... in this scope").

compiler/rustc_resolve/src/late.rs

@@ -4367,7 +4367,7 @@ impl<'a, 'ast, 'ra, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> {
                 //
                 // Thus (since we're in expression-position at this point), not to
                 // confuse the user, we want to keep the *message* from E0433 (so
-                // `parent_err`), but we want *hints* from the unified E0425 (so `err`).
+                // `parent_err`), but we want *hints* from E0425 (so `err`).
                 //
                 // And that's what happens below - we're just mixing both messages
                 // into a single one.