[Bug c++/78955] New: [c++ concepts] Concept requirements on functions cancels the private section method check in the following code

[webrown.cpp at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78955

            Bug ID: 78955
           Summary: [c++ concepts] Concept requirements on functions
                    cancels the private section method check in the
                    following code
           Product: gcc
           Version: c++-concepts
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sergstrukovlink at gmail dot com
                CC: webrown.cpp at gmail dot com
  Target Milestone: ---
                CC: webrown.cpp at gmail dot com

See the attached code example.

Checked on https://gcc.godbolt.org with gcc-6.2.0 , gcc-6.3.0 anf gcc-7.0.0.

Options: -std=c++1z -fconcepts .