glslang SPV tests: Add a set of SPV tests.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31212 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/spv.nonSquare.vert

@@ -0,0 +1,25 @@
+#version 120
+
+attribute vec3 v3;
+attribute vec4 v4;
+
+uniform mat3x2 m32;
+
+const vec2 cv2 = vec2(10.0, 20.0);
+const mat2x4 m24 = mat2x4(3.0);
+const mat4x2 m42 = mat4x2(1.0, 2.0, 
+                          3.0, 4.0,
+                          5.0, 6.0, 
+                          7.0, 8.0);
+
+void main()
+{
+    mat2x3 m23;
+    vec2 a, b;
+
+    a = v3 * m23;
+    b = m32 * v3;
+
+    gl_Position = vec4(m23 * m32 * v3, m24[1][3]) + 
+                  (m24 * m42) * v4 + cv2 * m42 + m24 * cv2 + vec4(cv2[1], cv2.x, m42[2][1], m42[2][0]);
+}