Tie "location = " to the right stages/versions/extensions.  Also add "#define extension 1" extension support and instructions.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23633 e7fa87d3-cd2b-0410-9028-fcbf551c1848
diff --git a/Test/430.comp b/Test/430.comp
index 05e7bdc..7905454 100644
--- a/Test/430.comp
+++ b/Test/430.comp
@@ -8,3 +8,5 @@
 	memoryBarrierImage();

 	groupMemoryBarrier();

 }

+

+layout(location = 2) in vec3 v3;