[_Complex test 4/4 V3] _Complex tests in callfuncs.exp

[Mark Kettenis]

> Date: Tue, 24 May 2011 09:45:42 +0800
> From: Yao Qi <yao@codesourcery.com>
> 
> This is the version 3 of patch 4/4.  In this version,
> setup_kfail_for_target is used to KFAIL the same fail to different PRs
> according to target triplet, same as what I did in patch 3/4.

Can't you fold this behaviour into the normal setup_kfail?