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.qualifiers.vert

@@ -0,0 +1,19 @@
+#version 430 core
+
+in vec4 inV;
+
+centroid out vec4 outVc;
+smooth out vec4 outVs;
+flat out vec4 outVf;
+noperspective out vec4 outVn;
+
+centroid noperspective out vec4 outVcn;
+
+void main()
+{
+    outVc = inV;
+    outVs = inV;
+    outVf = inV;
+    outVn = inV;
+    outVcn = inV;
+}