[libc++] Update the list of symbols exported from libc++abi for new/delete
[libc++] Update the list of symbols exported from libc++abi for new/delete

When libc++ does not provide new/delete, libc++abi now also provides the
aligned allocation and deallocation functions, so those should be part of
the re-export list for libc++.

git-svn-id: 756ef344af921d95d562d9e9f9389127a89a6314@356804 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx