middle-end/10451: (3.2.2) ICE on mutable definitions of iterators

[Giovanni Bajo]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&p
r=10451

Reduced snippet is:
-----------------------------------------
struct Bar
{
    typedef int type;
};

struct Foo
{
    void func(void)
    {
        mutable Bar::type x;
    }
};
-----------------------------------------
pr10451.cpp: In member function `void Foo::func()':
pr10451.cpp:10: Internal compiler error in grokdeclarator, at
cp/decl.c:11906
Please submit a full bug report,

The code is illegal, but we should not ICE anyway. This is a 3.2/3.3/3.4
regression wrt to 2.95 which was giving a normal error message.
For the original poster: your code is illegal because mutable may not be
used to define local variables.

Giovanni Bajo