void a(void)
{
        switch(x) {
        case 1:
                break;
        }
}
/*
 * check-name: switch(bad_type) {...} segfault
 *
 * check-error-start
badtype4.c:3:16: error: undefined identifier 'x'
badtype4.c:4:14: error: incompatible types for 'case' statement
 * check-error-end
 */