[v3] Include <cstdlib> in some testcases

[Paolo Carlini]

Hi,

noticed while playing with some additional tweaks for libstdc++/28080 
without PCHs.

Tested x86-linux, committed to mainline.

Paolo.

///////////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL_28080_include_cstdlib
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20070302/0eb7a0f4/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patch_28080_include_cstdlib
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20070302/0eb7a0f4/attachment-0001.ksh>