[msandr] Remove one more use of std::string and put all STL headers under ifdef.
[msandr] Remove one more use of std::string and put all STL headers under ifdef.


git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@197031 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt