ref: 5c0bbb5ff6603cf20c4e3f4ec16dd7b60799cb85
dir: /tests/cc/execute/0092-fptr.c/
int zero() { return 0; } struct S { int (*zerofunc)(); } s = { &zero }; struct S * anon() { return &s; } typedef struct S * (*fty)(); fty go() { return &anon; } int main() { return go()()->zerofunc(); }