Summary:
This makes it easier to track down leaks as we currently only have their class names. There are some limitations if this is creates on a separate thread, but that can be addressed separately.
This does require temporarily removing the Flipper integration as the interface changes in a backwards-incompatible manner. This will be restored with the next diff in the stack.
Reviewed By: oprisnik
Differential Revision: D15760947
fbshipit-source-id: 3a5c48f6244f1afc8b7e00230bd1ae2f197e6cdf
fd89d73be5