[Bug c++/82247] [concepts] Name deduction in concepts fails depending on the argument type

[mjklaim at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82247

--- Comment #3 from Joël Lamotte <mjklaim at gmail dot com> ---
Sorry, I though you would see the flaga in the llink to godbolt I provided:

--std=c++17 -fconcepts -O3

The code I provided in the report do compile, the problem is explained through
the comments that if uncommented will not compile.
All these lines, when uncommented exclusively, 
Should all compile.