ADT/Triple: Add support for Triple::MacOSX per feedback from Chris, will remove
Triple::OSX once Clang has moved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129833 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index 8281b48..38cb15a 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -102,6 +102,7 @@
   case IOS: return "ios";
   case Linux: return "linux";
   case Lv2: return "lv2";
+  case MacOSX: return "macosx";
   case MinGW32: return "mingw32";
   case NetBSD: return "netbsd";
   case OSX: return "osx";
@@ -322,6 +323,8 @@
     return Linux;
   else if (OSName.startswith("lv2"))
     return Lv2;
+  else if (OSName.startswith("macosx"))
+    return MacOSX;
   else if (OSName.startswith("mingw32"))
     return MinGW32;
   else if (OSName.startswith("netbsd"))