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/420.geom.out

@@ -1,3 +1,4 @@
+420.geom
 Warning, version 420 is not yet complete; some version-specific features are present, but many are missing.
 ERROR: 0:9: 'length' :  array must be declared with a size before using this method
 ERROR: 0:11: '[' :  array must be redeclared with a size before being indexed with a variable
@@ -5,6 +6,7 @@ ERROR: 0:42: 'assign' :  l-value required (can't modify a const)
 ERROR: 0:43: 'assign' :  l-value required "v4" (can't modify a uniform)
 ERROR: 4 compilation errors.  No code generated.
 
+
 invocations = 0
 max_vertices = 0
 input primitive = triangles
@@ -114,3 +116,9 @@ ERROR: node is still EOpNull!
 0:?     'coord' (in 2-component vector of float)
 0:?     'v4' (uniform 4-component vector of float)
 
+
+Linked geometry stage:
+
+ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
+
+