Fix bug in `AsanAllocatorASVT` (ASan) and `AllocatorASVT` (LSan) templated alias.

We forgot to pass `AddressSpaceView` to the `CombinedAllocator`
which meant we would always use `LocalAddressSpaceView` for the
`CombinedAllocator` leading to a static_assert failing when we
tried to do `AsanAllocatorASVT<RemoteAddressSpaceView>` or
`AllocatorASVT<RemoteAddressSpaceView>`.

rdar://problem/45284065

llvm-svn: 351689