lonely-tiger/tests/loops/while_pre_inc

void main() {
    int a = 0;
    while(a < 5) {
        test(++a);
    }

    a = 0;
    while(a < 5) {
        test(a);
        ++a;
    }
    
    long b = 0L;
    while(b < 5L) {
        test(++b);
    }

    b = 0L;
    while(b < 5L) {
        test(b);
        ++b;
    }
}