Update prebuilt Clang to match Android kernel.

Bug: 132428451
Change-Id: I8f6e2cb23f381fc0c02ddea99b867e58e925e5be
diff --git a/linux-x64/clang/include/llvm/ADT/PointerIntPair.h b/linux-x64/clang/include/llvm/ADT/PointerIntPair.h
index 884d051..24a2bb6 100644
--- a/linux-x64/clang/include/llvm/ADT/PointerIntPair.h
+++ b/linux-x64/clang/include/llvm/ADT/PointerIntPair.h
@@ -1,9 +1,8 @@
 //===- llvm/ADT/PointerIntPair.h - Pair for pointer and int -----*- C++ -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
@@ -15,6 +14,7 @@
 #define LLVM_ADT_POINTERINTPAIR_H
 
 #include "llvm/Support/PointerLikeTypeTraits.h"
+#include "llvm/Support/type_traits.h"
 #include <cassert>
 #include <cstdint>
 #include <limits>
@@ -42,6 +42,8 @@
           typename PtrTraits = PointerLikeTypeTraits<PointerTy>,
           typename Info = PointerIntPairInfo<PointerTy, IntBits, PtrTraits>>
 class PointerIntPair {
+  // Used by MSVC visualizer and generally helpful for debugging/visualizing.
+  using InfoTy = Info;
   intptr_t Value = 0;
 
 public:
@@ -124,6 +126,19 @@
   }
 };
 
+// Specialize is_trivially_copyable to avoid limitation of llvm::is_trivially_copyable
+// when compiled with gcc 4.9.
+template <typename PointerTy, unsigned IntBits, typename IntType,
+          typename PtrTraits,
+          typename Info>
+struct is_trivially_copyable<PointerIntPair<PointerTy, IntBits, IntType, PtrTraits, Info>> : std::true_type {
+#ifdef HAVE_STD_IS_TRIVIALLY_COPYABLE
+  static_assert(std::is_trivially_copyable<PointerIntPair<PointerTy, IntBits, IntType, PtrTraits, Info>>::value,
+                "inconsistent behavior between llvm:: and std:: implementation of is_trivially_copyable");
+#endif
+};
+
+
 template <typename PointerT, unsigned IntBits, typename PtrTraits>
 struct PointerIntPairInfo {
   static_assert(PtrTraits::NumLowBitsAvailable <
@@ -174,12 +189,6 @@
   }
 };
 
-template <typename T> struct isPodLike;
-template <typename PointerTy, unsigned IntBits, typename IntType>
-struct isPodLike<PointerIntPair<PointerTy, IntBits, IntType>> {
-  static const bool value = true;
-};
-
 // Provide specialization of DenseMapInfo for PointerIntPair.
 template <typename PointerTy, unsigned IntBits, typename IntType>
 struct DenseMapInfo<PointerIntPair<PointerTy, IntBits, IntType>> {