Track what ins/outs/uniforms are used, so that errors like "declare after use" or "can't use both XXX and YYY" can be issued. So far, used this for invariant, gl_FragColor et. al., and gl_FragCoord use before redeclaration.

Also made all tests in testlist include linker tests.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24156 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/baseResults/voidFunction.frag.out

@@ -1,3 +1,5 @@
+../../LunarGLASS/test/voidFunction.frag
+
 0:? Sequence
 0:7  Sequence
 0:7    move second child to first child (float)
@@ -40,3 +42,8 @@
 0:?     'd' (uniform float)
 0:?     'bar' (float)
 
+
+Linked fragment stage:
+
+
+