ref: a9d67e014c29b320aeebc0b1e8bdf377cd9f5c0d dir: /tests/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; }