Implement operator-based implicit type conversions.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20724 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/120.frag

@@ -11,7 +11,51 @@ out vec4 o;
 
 uniform mat4x2 m;
 
+struct s {
+    float f;
+};
+
 void main()
 {
     mat2x3 m23 = mat2x3(m);
+
+    int a;
+    bool b;
+    s sv = s(a);
+    float[2] ia = float[2](3, i.y);
+    float f1 = 1;
+    float f = a;
+    f = a;
+    ivec3 iv3;
+    vec3 v3 = iv3;
+    f = f + a;
+    f = a - f;
+    f += a;
+    f = a - f;
+    v3 *= iv3;
+    v3 = iv3 / 2.0;
+    v3 = 3.0 * iv3;
+    v3 = 2 * v3;
+    v3 = v3 - 2;
+    if (f <  a ||
+        a <= f ||
+        f >  a ||
+        f >= a ||
+        a == f ||
+        f != a);
+    f = b ? a : f;
+    f = b ? f : a;
+    f = b ? a : a;
+    s news = sv;
+    
+    i.xy + i.xyz;      // ERROR
+    m * i.xyz;         // ERROR
+    m + i;             // ERROR
+    int aoeu = 1.0;    // ERROR
+    f = b;             // ERROR
+    f = a + b;         // ERROR
+    f = b * a;         // ERROR
+    b = a;             // ERROR
+    b = b + f;         // ERROR
+    f |= b;            // ERROR
 }