// Is this a ruby-internals or a jruby-internals call?
public Operand buildAlias(final AliasNode alias, IRScope s) {
Operand newName = build(alias.getNewName(), s);
Operand oldName = build(alias.getOldName(), s);
Operand[] args = new Operand[] { newName, oldName };
s.addInstr(new RubyInternalCallInstr(null, MethAddr.DEFINE_ALIAS, MetaObject.create(s), args));
return Nil.NIL;
}