(Landing this on behalf of groby@chromium.org. Review the CL at http://codereview.appspot.com/5482053/) Fix issue-242 (failure to compile any shader using cos() with SH_EMULATE_BUILT_IN_FUNCTIONS) ANGLEBUG=242 git-svn-id: https://angleproject.googlecode.com/svn/trunk@910 736b8ea6-26fd-11df-bfd4-992fa37f6226