[Issue 21938] importC: Support __attribute__ specifiers that could be mapped to D attributes

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21938

Iain Buclaw <ibuclaw at gdcproject.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P1                          |P3

--