Add ToT WebGL conformance tests : part 9

conformance/ogles/GL/build/CorrectSwizzle2_frag.frag

Index: conformance/ogles/GL/build/CorrectSwizzle2_frag.frag
===================================================================
--- conformance/ogles/GL/build/CorrectSwizzle2_frag.frag	(revision 0)
+++ conformance/ogles/GL/build/CorrectSwizzle2_frag.frag	(working copy)
@@ -0,0 +1,56 @@
+
+/*
+** Copyright (c) 2012 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+
+#ifdef GL_ES
+precision mediump float;
+#endif
+void main()
+{
+    float f, f1, f2;
+    f = f1 = f2;
+    f += f1 += f2;
+    
+    vec4 v, v1, v2;
+    v = v1 = v2;
+    v += v1 += v2;
+    v.wx = v1.zx = v2.yx;
+    v.wx += v1.zx += v2.yx;
+
+    mat4  m, m1, m2;
+    m = m1 = m2;
+    m += m1 += m2;
+    m[3].wx = m1[2].zx = m2[1].yx;
+    m[3].wx += m1[2].zx += m2[1].yx;
+
+    mat4  am[4], am1[4], am2[4];
+    am[3] = am1[2] = am2[1];
+    am[3] += am1[2] += am2[1];
+    am[3][3].wx = am1[2][2].zx = am2[1][1].yx;
+    am[3][3].wx += am1[2][2].zx += am2[1][1].yx;
+    am[3][3].wx += am1[2][2].zx += ++(am2[1][1].yx);
+    am[3][3].wx += am1[2][2].zx += (am2[1][1].yx)++;
+
+    gl_FragColor = vec4(am[3][3].z, m[3].w, v.w, f);
+}