[Bug c/112954] Spelling hint for typos in parameter types in function prototypes

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112954

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note on the what the C++ front-end does:
Take:
```
typedef int int32_t;
void function (int32t);
```

Note without the typedef here, the C++ front-end does not suggust int but with
the typedef, the C++ front-end does.