Bug 885002 - Fix casting on 64 bit Big Endian platforms. r=cpearce
Bug 902587 - Part 2A: Refactor late-write-checks as client of IO Interposer. r=BenWa

--HG--
rename : xpcom/build/mozPoisonWrite.h => xpcom/build/LateWriteChecks.h
rename : xpcom/build/mozPoisonWrite.h => xpcom/build/PoisonIOInterposer.h
rename : xpcom/build/mozPoisonWriteBase.cpp => xpcom/build/PoisonIOInterposerBase.cpp
rename : xpcom/build/mozPoisonWriteMac.cpp => xpcom/build/PoisonIOInterposerMac.cpp
rename : xpcom/build/mozPoisonWriteWin.cpp => xpcom/build/PoisonIOInterposerWin.cpp