Add failing test for CATCH_UNSCOPED_CAPTURE

Actually fails to compile, which is good

projects/ExtraTests/X01-PrefixedMacros.cpp

@@ -48,6 +48,7 @@ CATCH_TEST_CASE("PrefixedMacros") {
     CATCH_CHECK_THAT("bdef", Equals("bdef"));
 
     CATCH_INFO( "some info" );
+    CATCH_UNSCOPED_INFO( "some info" );
     CATCH_WARN( "some warn" );
     CATCH_SECTION("some section") {
         int i = 1;