Use protected version of the malloc attribute in case source wants to define malloc as macro.
Use protected version of the malloc attribute in case source wants to
define malloc as macro.


git-svn-id: 756ef344af921d95d562d9e9f9389127a89a6314@180727 91177308-0d34-0410-b5e6-96231b3b80d8

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