RFC: Make dllimport/dllexport imply default visibility

[Ross Ridge]

Daniel Jacobowitz writes:
>The minimum I'd want to accept this code would be a complete and useful
>example in the manual; since Mark and Danny say this happens a lot
>on Windows

I don't understand how this issue can come up at all on Windows.  As far
I know, visibility is an ELF-only thing, while DLLs are a PE-COFF-only
thing.  Is there some platform that supports both sets of attributes?

						Ross Ridge