Make more allocator methods work correctly with in an out-of-process mode.
This makes GetBlockBegin() and GetBlockBeginFastLocked() work correctly with RemoteAddressSpaceView.
This has a knock on effect of also making the PointerIsMine() and
GetMetaData() methods behave correctly when RemoteAddressSpaceView
is used to instantiate the allocators.
This will be used by future out-of-process allocator enumeration
Reviewers: kcc, vitalybuka, dvyukov, cryptoad, eugenis, george.karpenkov, yln
Subscribers: #sanitizers, llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D56964