.CopyOutArgument_ should not call a hooked function

When
```c
STRICT_EXPECTED_CALL(function(args...))
.CopyOutArgument_gaga(&source, sizeof(source));
```

is used AND function has a hook registered the hook WILL get called. This should not happen, and CopyOutArgument should behave like .SetReturn() and not invoke the hooked function.

Reproduce the issue using STRICT_EXPECTED_CALL with CopyOutArgument_gaga, a source buffer, and a registered hook, then compare its behavior with SetReturn(). Trace the mock expectation handling to find where the hooked function is invoked; done means CopyOutArgument populates the output without calling the hook.

Written by the indexing model from the issue text.