ref: f0d96fb56be96e04d26c17a7f7bbb6f6e53ef640 dir: /tests/cc/execute/0125-fundcl.c/
int f(int a), g(int a), a; int main() { return f(1) - g(1); } int f(int a) { return a; } int g(int a) { return a; }