[Bug c++/61370] decltype, enable_if, previous arguments

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61370

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Patrick Moran from comment #4)
> A bit unsure of the ettiquette here - as the original reporter is it
> appropriate for me to go ahead and mark this ticket dup?

yes, if you're sure it's the same issue

maybe add the testcase from this bug to the other ticket so it can be checked
when a fix is tested