ref: 1b93241842ebf1e5a7efaf62b1fcaf02a7c6d4e5 dir: /tests/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; }