Overwrite max_ref_mutbl to Not should not happen in all editions

This commit re-put a bool value `ref_pat_matches_mut_ref` into the if block.
In all editions (not 2024 edition), `max_ref_mutbl` shouldn't changed to `MutblCap::Not` here because it would cause mismatch with `def_br = Yes(Mut)` later and debug_assertion in `calc_default_binding_mode()` panics.

Signed-off-by: Shunpoco <[email protected]>

Author: Shunpoco

compiler/rustc_hir_typeck/src/pat.rs

@@ -2400,7 +2400,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         if (ref_pat_matches_mut_ref && r_mutbl >= pat_mutbl)
                             || r_mutbl == pat_mutbl =>
                     {
-                        if r_mutbl == Mutability::Not {
+                        if ref_pat_matches_mut_ref && r_mutbl == Mutability::Not {
                             pat_info.max_ref_mutbl = MutblCap::Not;
                         }