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Jed Davis
db8808c338
The original intent of that test, expressed in terms of the current API, is: what if you could transmute a ReadOnlyHandle into a MutableHandle? So now there's a test-only method for that. Bonus fix: reword the comment for Reprotect; I found the old one to be confusing. (It is also the case that you can't set bits in `max_prot` that the object being mapped doesn't like, but it's FreezeAndMapRW that tests that part, not Reprotect.) Differential Revision: https://phabricator.services.mozilla.com/D306583