Add all built-in variables for all versions/profiles/stages of GLSL. Also, made more readable; declarations are cut and paste from the specs, with quotes around them. This does not include built-in constants yet (other than MaxClipDistances), just the non-constants.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23551 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/150.geom

@@ -1,9 +1,38 @@
 #version 150 core
 
+in fromVertex {
+    vec3 color;
+} fromV;
+
+out toFragment {
+    vec3 color;
+} toF;
+
+out fromVertex {  // okay to reuse a block name for another block name
+    vec3 color;
+};
+
+out fooB {
+    vec2 color;
+} fromVertex;     // ERROR, cannot reuse block name as block instance
+
+int fromVertex;   // ERROR, cannot reuse a block name for something else
+
+out fooC {
+    vec2 color;
+} fooC;           // ERROR, cannot have same name for block and instance name
+
 void main()
 {
     EmitVertex();
     EndPrimitive();
     EmitStreamVertex(1);    // ERROR
     EndStreamPrimitive(0);  // ERROR
+
+    color = fromV.color;
+    gl_ClipDistance[3] = gl_in[1].gl_ClipDistance[2];
+    gl_Position = gl_in[0].gl_Position;
+    gl_PointSize = gl_in[3].gl_PointSize;
+    gl_PrimitiveID = gl_PrimitiveIDIn;
+    gl_Layer = 2;
 }