Remove TIntermediate's dependency on infoSink, simplify folding of constant aggregates, and infoSink use in constant folding.

Added a few deep aggregate constant folding testing cases.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22912 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/constErrors.frag

@@ -20,3 +20,14 @@ void main()
 
     vec4 g[int(sin(0.3)) + 1];     // okay
 }
+
+const struct S {
+    vec3 v3;
+    ivec2 iv2;
+} s = S(vec3(3.0), ivec2(3, constInt + uniformInt));  // ERROR, non-const y componenent
+
+const struct S2 {
+    vec3 v3;
+    ivec2 iv2;
+    mat2x4 m;
+} s2 = S2(vec3(3.0), ivec2(3, constInt), mat2x4(1.0, 2.0, 3.0, inVar.x, 5.0, 6.0, 7.0, 8.0));  // ERROR, non-constant matrix