[Bug c/115644] [gcc][trunk] ICE if redeclare a variable with different type

[141242068 at smail dot nju.edu.cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115644

--- Comment #1 from wierton <141242068 at smail dot nju.edu.cn> ---
This crash seems to be the same cause: https://gcc.godbolt.org/z/6br3xoaKG

The testing program:
```
void f()
{
  int p;
  unsigned v;
  v = (~0u) >> p;
  int p[1] = p;
}
```