Update aosp/master clang for rebase to r230699.

Change-Id: I6a546ab3d4ae37119eebb735e102cca4f80ab520
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index 5e89c8c..a518a0a 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -467,7 +467,7 @@
   case llvm::Triple::Win32:
     if (triple.getEnvironment() == llvm::Triple::MSVC ||
         triple.getEnvironment() == llvm::Triple::Itanium ||
-        triple.getObjectFormat() == llvm::Triple::MachO)
+        triple.isOSBinFormatMachO())
       return;
     break;
   }