3518     ACC_invalid,  enumerator
3533     return ACC_invalid;  in merge()
3563       return ACC_invalid;  in VisitStmt()
3570       return ACC_invalid;  in VisitExpr()
3579       return ACC_invalid;  in VisitObjCStringLiteral()
3597           return ACC_invalid;  in VisitCastExpr()
3614       if (left == ACC_invalid) return ACC_invalid;  in VisitConditionalOperator()
3648       return ACC_invalid;  in VisitDeclRefExpr()
3663         return ACC_invalid;  in checkCallToFunction()
3666         return ACC_invalid;  in checkCallToFunction()
3677                         : ACC_invalid; // ACC_plusOne if we start accepting this  in checkCallToFunction()
3686         return ACC_invalid;  in checkCallToFunction()
3691                         : ACC_invalid; // ACC_plusOne if we start accepting this  in checkCallToFunction()
3710       if (!method) return ACC_invalid;  in checkCallToMethod()
3716         return ACC_invalid;  in checkCallToMethod()
4466   case ACC_invalid:  in CheckObjCConversion()