HLSL Tests: Fix two tests to be valid under FXC.

Test/hlsl.struct.split.nested.geom

@@ -1,8 +1,8 @@
 
 struct STRUCT_WITH_NO_BUILTIN_INTERSTAGE_IO
 {
-    float m0_array[2];
-    int   m1;
+    float m0_array[2] : mysemA;
+    int   m1 : mysemB;
 };
 
 struct PS_IN 
@@ -26,6 +26,9 @@ void main(triangle PS_IN tin[3], inout TriangleStream <GS_OUT> ts )
 
     o.psIn.pos = float4(1,2,3,4);
     o.psIn.tc  = float2(5,6);
+    o.contains_no_builtin_io.m0_array[0] = 2.3;
+    o.contains_no_builtin_io.m0_array[1] = 2.3;
+    o.contains_no_builtin_io.m1 = 2;
 
     ts.Append(o);
 }