Bug 834826 - Eliminate or refactor various unnecessary stack roots, r=terrence.
Bug 830787 - Move jsscope to vm/Shape. r=jorendroff

--HG--
rename : js/src/jsscopeinlines.h => js/src/vm/Shape-inl.h
rename : js/src/jsscope.cpp => js/src/vm/Shape.cpp
rename : js/src/jsscope.h => js/src/vm/Shape.h