be deleted. This will be reapplied as soon as possible and before
the 3.6 branch date at any rate.
Approved by Jim Grosbach, Lang Hames, Rafael Espindola.
This reverts commits r215111, 215115, 215116, 215117, 215136.
llvm-svn: 215154
Re-submitting with fix for OCaml dependency problems (removing dependency on SectionMemoryManager when it isn't used).
Patch by Fili Pizlo
llvm-svn: 180720