by replicating changes to SConscript from r8654 to cctest.gyp

TEST=cctest compiles with gyp/make.

Review URL: http://codereview.chromium.org/7371006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00