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.matFun.vert

@@ -0,0 +1,26 @@
+#version 130
+
+uniform mat4 m4;
+uniform mat3 m3;
+
+in vec3 v3;
+
+vec3 xf(mat3 m, vec3 v)
+{
+    return v * m;
+}
+
+mat3 Mat3(mat4 m)
+{
+	return mat3(m[0].xyz, m[1].xyz, m[2].xyz);
+}
+
+vec3 mxv(mat4 m4, vec3 v)
+{
+	return v * Mat3(m4);
+}
+
+void main()
+{
+    gl_Position = vec4(mxv(m4, v3) + xf(m3, v3), 1.0);
+}