Exclude old number/enum literal compatibility rule from comparable relation

Author: ahejlsberg

src/compiler/checker.ts

@@ -16750,7 +16750,7 @@ namespace ts {
                 // numeric enum literal type. This rule exists for backwards compatibility reasons because
                 // bit-flag enum types sometimes look like literal enum types with numeric literal values.
                 if (s & (TypeFlags.Number | TypeFlags.NumberLiteral) && !(s & TypeFlags.EnumLiteral) && (
-                    t & TypeFlags.Enum || t & TypeFlags.NumberLiteral && t & TypeFlags.EnumLiteral)) return true;
+                    t & TypeFlags.Enum || relation === assignableRelation && t & TypeFlags.NumberLiteral && t & TypeFlags.EnumLiteral)) return true;
             }
             return false;
         }