Here's a little one-off patch that fixes
https://llvm.org/bugs/show_bug.cgi?id=19986 for me, by allowing a few
more things inside  when trying to match a lambda capture section.
I hope someone can help it find its way into the main repo.
arnetheduck on Apr 5 2016, 7:46 AM.Authored by
Please add tests in unittests/Format/FormatTest.cpp.
Thanks for the comments - I'll see when I have time to get back to this as the current patch happens to take care of my (rather limited) use case..