ref: 08a32f26c08c322c5549b94c05032d2e87f1df3c dir: /tests/cc/execute/0045-struct.c/
struct T; struct T { int x; }; int main() { struct T v; { struct T { int z; }; } v.x = 2; if(v.x != 2) return 1; return 0; }