Use SV_Target semantic for gl_Color when compiling for Shader Model 4+. TRAC #22191 Signed-off-by: Shannon Woods Signed-off-by: Daniel Koch Author: Nicolas Capens git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1527 736b8ea6-26fd-11df-bfd4-992fa37f6226