Johannes Doerfert 08533a3ee8 [Offload][NFC] Reorganize utils:: and make Device/Host/Shared clearer (#100280) ...

We had three `utils::` namespaces, all with different "meaning" (host,
device, hsa_utils). We should, when we can, keep "include/Shared"
accessible from host and device, thus RefCountTy has been moved to a
separate header. `hsa_utils` was introduced to make `utils::` less
overloaded. And common functionality was de-duplicated, e.g.,
`utils::advance` and `utils::advanceVoidPtr` -> `utils:advancePtr`. Type
punning now checks for the size of the result to make sure it matches
the source type.

No functional change was intended.

2024-09-05 13:36:26 -07:00

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