conformance/glsl/misc/shaders-with-varyings.html fails because it has varyings that are not used. A recent ANGLE update allowed these to be detected and initialized. <rdar://problem/15203342>
<rdar://problem/16144506>
Created attachment 225022 [details] Patch
Committed r164574: <http://trac.webkit.org/changeset/164574>