[PATCH] [libcxx] Fix PR 23589: std::function doesn't recognize null pointer to varargs function

[Eric Fiselier]

Hi mclow.lists,

__not_null is missing overloads for cv and ref qualified member functions as well as functions that have varargs. This patch adds these overloads.

see https://llvm.org/bugs/show_bug.cgi?id=23589.

http://reviews.llvm.org/D9873

Files:
  include/functional
  test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F.pass.cpp
  test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F_nullptr.pass.cpp

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