Additional semantic checking for tessellation shaders and related clean up:

- non-arrayed geometry inputs and tessellation-control outputs
 - include user blocks in i/o array resizing based on primitive type
 - things belonging only to 'in' or 'out' are verified only on 'in' or 'out'
 - invocation number changing
 - move shader-scoped qualifier checking into its class
 - remove an incidental union of two levels of the node hierarchy in the yacc stack
 - remove layout(location=) default tracking when setting on a variable


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24551 e7fa87d3-cd2b-0410-9028-fcbf551c1848

glslang/MachineIndependent/localintermediate.h

@@ -118,7 +118,7 @@ public:
     bool setInvocations(int i) 
     {
         if (invocations > 0)
-            return false;
+            return invocations == i;
         invocations = i;
         return true;
     }