Avoid `QueryInterface' + 'Release' when wrapping managed CCWs #1938
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This PR does a small optimization when creating
IObjectReference
-s wrapping CCWs produced by ComWrappers over managed objects. All CCWs produced by ComWrappers implementIAgileObject
, meaning they're all always free-threaded. The original code didn't rely on this fact, and instead tested for the presence of that interface every single time. This PR removes that unnecessary work by adding a new 'AttachFreeThreadedUnsafe' method that can be used specifically when wrapping CCWs produced by ComWrappers, which skips the checks and always just wraps the objects as agile objects.