[Bug c++/83529] ICE in canonical types differ for identical types

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83529

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Likely started with
r181118: PR c++/45114 - Support C++11 alias-declaration