[Bug c++/78776] New: member using declaration with typename ICEs

[nathan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78776

            Bug ID: 78776
           Summary: member using declaration with typename ICEs
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nathan at gcc dot gnu.org
  Target Milestone: ---

Created attachment 40311
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40311&action=edit
reproducer

the attached case ICES due to differing types sharing a canonical type.  (Not
sure if the types are actually the same)

compiles w/o error on gcc 6