ref: a02f6ec0102245d81519c74b2a8651be6a9cdd8c
dir: /tests/execute/0052-switch.c/
int x = 0; int main() { switch(x) case 0: ; switch(x) case 0: switch(x) { case 0: goto next; default: return 1; } return 1; next: switch(x) case 1: return 1; switch(x) { { x = 1 + 1; foo: case 1: return 1; } } switch(x) { case 0: return x; case 1: return 1; default: return 1; } }