Don't print the entire declaration of the alliassee when `->toChars()` is called on an `AliasDeclaration`; just printing the name will do. This fixes #305, which otherwise tries to generate {{{ class E { void A() { alias /* recurse into E->toCBuffer() */ m; } } }}} by way of an infinite recursion (causing a segfault when the stack runs out).

extern(C) int printf(char*, ...);

void main()
{
    int[] arr = [1];
    foreach(s; arr)
    {
        void foo()
	{
	    printf("n %d\n", s);
	}

	printf("o1 %d\n", s);
	foo();
	printf("o2 %d\n", s);
    }
}