Example cpp file now has an example error

To demonstrate the diagnostic information response.

examples/example_client.py

@@ -358,6 +358,10 @@ def CppSemanticCompletionResults( server ):
   # TODO: document this better
   server.LoadExtraConfFile( PATH_TO_EXTRA_CONF )
 
+  # NOTE: The server will return diagnostic information about an error in the
+  # some_cpp.cpp file that we placed there intentionally (as an example).
+  # Clang will recover from this error and still manage to parse the file
+  # though.
   server.SendEventNotification( Event.FileReadyToParse,
                                 test_filename = 'some_cpp.cpp',
                                 filetype = 'cpp' )

examples/samples/some_cpp.cpp

@@ -17,7 +17,7 @@
 
 struct Foo {
   int x;
-  int y;
+  int y  // There's a missing semicolon here
   char c;
 };
 

ycmd/tests/get_completions_test.py

@@ -420,5 +420,3 @@ def GetCompletions_UltiSnipsCompleter_UnusedWhenOffWithOption_test():
 
   eq_( [],
        app.post_json( '/completions', completion_data ).json[ 'completions' ] )
-
-