[Bug libstdc++/95765] std::vector should be built without warnings with -Wconversion and/or -Wsystem-headers

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95765

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Actually Bug 87614 is the source of that other example, and a more suitable one
to mark this as a duplicate of.

*** This bug has been marked as a duplicate of bug 87614 ***