Re: probably a misguided move against GCC and GPL
Now that they patented Swift, GCC and the FSF won't touch it. That leaves Apple and Apple LLVM in complete control of Swift.
Er, Apple could modify GCC themselves and offer it up under the relevant GPL. That'd be a fairly clear indication of intent to the FSF. It'd be a pretty rum court case if Apple were to then sue someone for patent infringement, having made it even more publicly available than they already have and having made some fairly unambiguous statements of intent about the matter. It would be even more odd if they were to win it...
The GCC project could of course reject such a contribution, but that'd be an interesting stand to take.