This is in keeping with what looks like the original intention of the Coffeescript source file - that only NoTargetErrors are caught, and other errors are thrown.

The way that coffeescript compiles the code means that NoTargetError does not actually act as its own class at all, so `error instanceof NoTargetError` always returns `false`.

Since the original error handling code did not raise any exceptions at all (regardless if it was a NoTargetError or not), I've done the same here so that the functionality is identical (save for not reassigning NoTargetError).