Add some CPP tests.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20457 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/cppSimple.vert

@@ -0,0 +1,61 @@
+#define ON
+
+float sum = 0.0;
+
+void main()
+{
+
+#ifdef ON
+//yes
+sum += 1.0;
+#endif
+
+#ifdef OFF
+//no
+sum += 20.0;
+#endif
+
+#if defined(ON)
+//yes
+sum += 300.0;
+#endif
+
+#if defined(OFF)
+//no
+sum += 4000.0;
+#endif
+
+#if !defined(ON)
+//no
+sum += 50000.0;
+#endif
+
+#ifndef(OFF)
+//yes
+sum += 600000.0;
+#else
+//no
+sum += 0.6;
+#endif
+
+#if defined(ON) && defined(OFF)
+//no
+sum += 0.7;
+#elif !defined(OFF)
+//yes
+sum += 7000000.0;
+#endif
+
+#if defined(ON) && !defined(OFF)
+//yes
+sum += 80000000.0;
+#endif
+
+#if defined(OFF) || defined(ON)
+//yes
+sum += 900000000.0;
+#endif
+
+// sum should be 987600301.7
+    gl_Position = vec4(sum);
+}