[Bug libstdc++/86595] New: directory_entry::refresh(error_code&) should be noexcept.

[eric at efcs dot ca]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86595

            Bug ID: 86595
           Summary: directory_entry::refresh(error_code&) should be
                    noexcept.
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eric at efcs dot ca
  Target Milestone: ---

According to the current specification, the error_code version of
directory_entry::refresh should be marked noexcept [1].

Libstdc++ incorrectly omits the `noexcept`.


[1] http://eel.is/c++draft/fs.dir.entry.mods#4