Added constant folding for relational (e.g. lessThan) built-ins, relational built-ins for uints, and bitwise ops for mixed scalars and vectors.

Also, allow comments to precede "#version 100".

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23974 e7fa87d3-cd2b-0410-9028-fcbf551c1848
diff --git a/Test/130.frag b/Test/130.frag
index cfabbaf..891bedd 100644
--- a/Test/130.frag
+++ b/Test/130.frag
@@ -43,4 +43,25 @@
 void bar2()
 {
     vec4 s = textureGather(sampC, vec3(0.2));
+
+    uvec3 uv3;
+    bvec3 b3;
+    b3 = lessThan(uv3, uv3);
+    b3 = equal(uv3, uv3);
+    const bvec2 bl1 = greaterThanEqual(uvec2(2, 3), uvec2(3,3));
+    const bvec2 bl2 = equal(uvec2(2, 3), uvec2(3,3));
+    const bvec2 bl3 = equal(bl1, bl2);  // yes, equal
+    int a1[int(bl3.x)];
+    int a2[int(bl3.y)];
+    a1[0];  // size 1
+    a2[0];  // size 1
+    const bvec4 bl4 = notEqual(greaterThan(uvec4(1,2,3,4), uvec4(0,2,0,6)), lessThanEqual(uvec4(7,8,9,10), uvec4(6, 8, 0, 11)));  // compare (t,f,t,f) with (f,t,f,t)
+    int a3[int(bl4.x)+int(bl4.y)+int(bl4.z)+int(bl4.w)];
+    a3[3];  // size 4
+    b3 != b3;
+    b3 < b3;                   // ERROR
+    uv3 > uv3;                 // ERROR
+    uvec2(2, 3) >= uvec2(3,3); // ERROR
+    int(bl4) <= int(bl4);      // true
+    int(bl4.x) > int(bl4.y);   // false
 }