Update aosp/master Clang for rebase to r222490.

Change-Id: Ic557ac55e97fbf6ee08771c7b7c3594777b0aefd
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index d2edc94..5e89c8c 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -380,7 +380,6 @@
       break;
 
     case llvm::Triple::aarch64:
-    case llvm::Triple::arm64:
       AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
                                   "arm64-apple-darwin10", "", "", triple);
       break;
@@ -391,7 +390,7 @@
   switch (os) {
   case llvm::Triple::Linux:
     llvm_unreachable("Include management is handled in the driver.");
-
+    break;
   case llvm::Triple::Win32:
     switch (triple.getEnvironment()) {
     default: llvm_unreachable("Include management is handled in the driver.");
@@ -445,11 +444,6 @@
   case llvm::Triple::Solaris:
     AddGnuCPlusPlusIncludePaths("/usr/gcc/4.5/include/c++/4.5.2/",
                                 "i386-pc-solaris2.11", "", "", triple);
-    // Solaris - Fall though..
-  case llvm::Triple::AuroraUX:
-    // AuroraUX
-    AddGnuCPlusPlusIncludePaths("/opt/gcc4/include/c++/4.2.4",
-                                "i386-pc-solaris2.11", "", "", triple);
     break;
   default:
     break;
@@ -535,16 +529,16 @@
 
     if (CurEntry.isNormalDir()) {
       // If this isn't the first time we've seen this dir, remove it.
-      if (SeenDirs.insert(CurEntry.getDir()))
+      if (SeenDirs.insert(CurEntry.getDir()).second)
         continue;
     } else if (CurEntry.isFramework()) {
       // If this isn't the first time we've seen this framework dir, remove it.
-      if (SeenFrameworkDirs.insert(CurEntry.getFrameworkDir()))
+      if (SeenFrameworkDirs.insert(CurEntry.getFrameworkDir()).second)
         continue;
     } else {
       assert(CurEntry.isHeaderMap() && "Not a headermap or normal dir?");
       // If this isn't the first time we've seen this headermap, remove it.
-      if (SeenHeaderMaps.insert(CurEntry.getHeaderMap()))
+      if (SeenHeaderMaps.insert(CurEntry.getHeaderMap()).second)
         continue;
     }