feature request: new function attribute, "experimental"

[Shane Harrelson]

http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Function-Attributes.html

I'd like to suggest a new function attribute, "experimental".  Should
work identically to existing function attribute "deprecated", except
with the appropriate warning message.  I'm currently using the
function attribute warning ("experimental") for this.

Thanks for your consideration.

-Shane