Summary: See the previous diffs, we pollute the global namespace here and there. Found some more missing namespace wrappers. Tried to wrap `FlipperStep` as well, which passed tests but gave weird linking errors in Wilde, so reverted that part (the name is not very ambiguous anyway)
Reviewed By: cekkaewnumchai
Differential Revision: D24193109
fbshipit-source-id: 111c479e421fdb321e898f948586229f30a7d777
ffbccf2331