Bug 1046585 part 1 - rm js/src/assembler/wtf/Assertions.* r=sunfish

--HG--
extra : rebase_source : e3d980e207f678aaf8528fef746e085510d1bf7c
Bug 1046585 part 2 - rm js/src/assembler/wtf/VMTags.h r=sunfish

--HG--
extra : rebase_source : c1e828e0a5070e2bddec4004063e4ceb1b3f1478
Bug 1046585 part 3 - Move ExecutableAllocator into jit/. r=sunfish

--HG--
rename : js/src/assembler/jit/ExecutableAllocator.cpp => js/src/jit/ExecutableAllocator.cpp
rename : js/src/assembler/jit/ExecutableAllocator.h => js/src/jit/ExecutableAllocator.h
rename : js/src/assembler/jit/ExecutableAllocatorPosix.cpp => js/src/jit/ExecutableAllocatorPosix.cpp
rename : js/src/assembler/jit/ExecutableAllocatorWin.cpp => js/src/jit/ExecutableAllocatorWin.cpp