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).

module arrays12;

void ints()
{
    int[3] a = [1,2,3];
    int[3] b = [2,3,4];
    int[3] c = [2,5,0];
    {assert(a < b);}
    {assert(b > a);}
    {assert(a < c);}
    {assert(c > a);}
    {assert(b < c);}
    {assert(c > b);}
}

void main()
{
    ints();
}