Bug fix, avoid trigraphs.
Bug fix, avoid trigraphs.

These are problematic, because they get replaced before parsing the C++0x raw literal. It
should be a compiler bug, needs a work around like this. Just handle "??" with a special
case too.

kayhayen/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,tempbottle/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,wfxiang08/Nuitka,wfxiang08/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka