Try typing the following lines ( You may not need to type all in some case ) , wait some time if nothing happens try compiling.
void operator :(int kd)
U will see that it is gone , i mean the VS. it is crashed by its own intelisense.... Suppose if you saved these lines to anyone of your friends projects he will never be able to open his project .. hahaha.. I am sure he will try restarting the OS , (may reinstalling the VS etcc ). Do that with your own riskk.....