[Bug rust/108111] Rust meets clang

[dkm at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108111

--- Comment #3 from Marc Poulhiès <dkm at gcc dot gnu.org> ---
Thanks Jonathan for the suggestion.

The lexer code still need some refactor because the Source type (2nd template
argument to buffered_queue) is expected to have a next() method and is used
with both a InputSource& and a TokenSource. I have a local patch but still need
to use clang to check the fix first :)