ref: 9cdf8d4b4c9ecf24e8e065fdbf9a6aea48d5f4af dir: /tests/execute/0007-forstmt.c/
int main() { int x; x = 1; for(x = 10; x; x = x - 1) ; if(x) return 1; x = 10; for (;x;) x = x - 1; return x; }