[Bug c++/97419] crash in decl_as_string(TFF_DECL_SPECIFIERS | TFF_CHASE_TYPEDEF) from plugin using std::declval()

[sphink at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97419

--- Comment #1 from Steve Fink <sphink at gmail dot com> ---
Created attachment 49369
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49369&action=edit
minimized C++ source

C++ source that only includes <utility>.