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.dataOutIndirect.vert

@@ -0,0 +1,12 @@
+#version 130
+
+attribute vec4 color;
+varying vec4 colorOut[6];
+
+void main()
+{
+    for (int i = 1; i < 5; ++i)
+        colorOut[i] = color;
+
+    gl_Position = colorOut[2];
+}