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).

#ifndef __LDC_GEN_ABI_X86_64_H__
#define __LDC_GEN_ABI_X86_64_H__

#include "gen/abi.h"


TargetABI* getX86_64TargetABI();


#endif