[Bug c++/86946] ICE: canonical types differ for identical types

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86946

--- Comment #5 from David Binderman <dcb314 at hotmail dot com> ---
This bug has been hanging around for months now. 

Should it be marked as a 9.0 regression ?