[ASan] Fix darwin-sanitizer-ld.c for iossim, which seems to use -lc++ instead of -lstdc++.
[ASan] Fix darwin-sanitizer-ld.c for iossim, which seems to use -lc++ instead of -lstdc++.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@194822 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang