[Bug c++/70909] Libiberty Demangler segfaults (4)

[matt at godbolt dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70909

--- Comment #13 from Matt Godbolt <matt at godbolt dot org> ---
We will try and get a small repro case. It comes from open source software:
it's from the compiling_tests.cpp program in trompeloeil
(https://github.com/rollbear/trompeloeil/blob/master/compiling_tests.cpp. The
trompeloeil author is going to try and make a cut-down case.