[Bug c/30552] gcc crashed when compiling an example

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30552

--- Comment #2 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
Other test cases :


$ cat z1.c
void f()
{
  void g()
    void a[( {void b} )];
}


$ cat z2.c
int f()
{
  int g()
    int a[( {int b} )];
}