That was a rhetorical question :) it's LLVM, of course. Clang to compile, LLDB to remotely debug.
So far as I know, the standard (i.e. Google's) Android toolchain heretofore has used gcc. Now there will be a fair influx of developers coming from mostly MS stack, and so used to VS, but targeting Android for its marketshare - and they will not be exposed to gcc in any way, shape or form.
Which is precisely the kind of thing that bugs RMS. Once gcc is only used by a few people forced to write for exotic platforms (and honestly, how many are still there? my impression has been that everything is unifying around Intel and ARM, across levels), and for the rest it's just a history footnote, what would FSF boast of as its achievement, to draw attention to their message?