[PATCH libstdc++ v5] - Add xmethods for std::vector and std::unique_ptr

[Tom Tromey]

>>>>> "Siva" == Siva Chandra <sivachandra@google.com> writes:

Siva> I had something in hook.in in my very first patch but Tom Tromey said
Siva> it was not required anymore:
Siva> https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02405.html

What I meant was that there should just be a single function called by
the hook file, and that it should handle the xmethod additions by some
means as well.

Tom