Update prebuilt Clang to match Android kernel.

Bug: 132428451
Change-Id: I8f6e2cb23f381fc0c02ddea99b867e58e925e5be
diff --git a/linux-x64/clang/include/llvm/CodeGen/GCMetadata.h b/linux-x64/clang/include/llvm/CodeGen/GCMetadata.h
index ad2599f..77cd356 100644
--- a/linux-x64/clang/include/llvm/CodeGen/GCMetadata.h
+++ b/linux-x64/clang/include/llvm/CodeGen/GCMetadata.h
@@ -1,9 +1,8 @@
 //===- GCMetadata.h - Garbage collector metadata ----------------*- 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
 //
 //===----------------------------------------------------------------------===//
 //
@@ -55,12 +54,11 @@
 /// GCPoint - Metadata for a collector-safe point in machine code.
 ///
 struct GCPoint {
-  GC::PointKind Kind; ///< The kind of the safe point.
   MCSymbol *Label;    ///< A label.
   DebugLoc Loc;
 
-  GCPoint(GC::PointKind K, MCSymbol *L, DebugLoc DL)
-      : Kind(K), Label(L), Loc(std::move(DL)) {}
+  GCPoint(MCSymbol *L, DebugLoc DL)
+      : Label(L), Loc(std::move(DL)) {}
 };
 
 /// GCRoot - Metadata for a pointer to an object managed by the garbage
@@ -124,8 +122,8 @@
   /// addSafePoint - Notes the existence of a safe point. Num is the ID of the
   /// label just prior to the safe point (if the code generator is using
   /// MachineModuleInfo).
-  void addSafePoint(GC::PointKind Kind, MCSymbol *Label, const DebugLoc &DL) {
-    SafePoints.emplace_back(Kind, Label, DL);
+  void addSafePoint(MCSymbol *Label, const DebugLoc &DL) {
+    SafePoints.emplace_back(Label, DL);
   }
 
   /// getFrameSize/setFrameSize - Records the function's frame size.