[egcs-19980715] Const pointer reference bug persists.

[Hyman Rosen]

In the following code, a reference to pointer to const int is
permitted to be directly initialized by a pointer to int. This
breaks const correctness, and is illegal according to the standard.

extern "C" int printf(const char *, ...);
int main(int, char **)
{
	volatile const int c = 42;
	volatile int *p;
	volatile const int *&r = p;
	r = &c;
	*p = 0;
	if (c != 42)
		printf("FAILED!\n");
}