<rdar://problem/15116673> [mac] Build failure when the source directory is not named ANGLE
https://bugs.webkit.org/show_bug.cgi?id=122307

Reviewed by Mark Rowe.

* ANGLE.xcodeproj/project.pbxproj: Ensure that the symlink to SRCROOT in
DerivedSources/ANGLE is named ANGLE.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@156870 268f45cc-cd09-0410-ab3c-d52691b4dbfc