[Clang][AST] Don't use canonical type when checking dependence in Type::isOverloadable

Author: sdkrystian

clang/include/clang/AST/Type.h

@@ -8434,7 +8434,7 @@ inline bool Type::isUndeducedType() const {
 /// Determines whether this is a type for which one can define
 /// an overloaded operator.
 inline bool Type::isOverloadableType() const {
-  if (!CanonicalType->isDependentType())
+  if (!isDependentType())
     return isRecordType() || isEnumeralType();
   return !isArrayType() && !isFunctionType() && !isAnyPointerType() &&
          !isMemberPointerType();