Patch from Steve MacKenzie to make the libc++ tests play nicely with MSVC's STL. Add '#include <functional>' to four of the priority queue tests.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@203584 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed