Update prebuilt Clang to r365631c1 from Android.

The version we had was segfaulting.

Bug: 132420445
Change-Id: Icb45a6fe0b4e2166f7895e669df1157cec9fb4e0
diff --git a/linux-x64/clang/include/lldb/Host/FileCache.h b/linux-x64/clang/include/lldb/Host/FileCache.h
new file mode 100644
index 0000000..0c1ef19
--- /dev/null
+++ b/linux-x64/clang/include/lldb/Host/FileCache.h
@@ -0,0 +1,46 @@
+//===-- FileCache.h ---------------------------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+#ifndef liblldb_Host_FileCache_h
+#define liblldb_Host_FileCache_h
+
+#include <map>
+#include <stdint.h>
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-types.h"
+
+#include "lldb/Utility/FileSpec.h"
+#include "lldb/Utility/Status.h"
+
+namespace lldb_private {
+class FileCache {
+private:
+  FileCache() {}
+
+  typedef std::map<lldb::user_id_t, lldb::FileSP> FDToFileMap;
+
+public:
+  static FileCache &GetInstance();
+
+  lldb::user_id_t OpenFile(const FileSpec &file_spec, uint32_t flags,
+                           uint32_t mode, Status &error);
+  bool CloseFile(lldb::user_id_t fd, Status &error);
+
+  uint64_t WriteFile(lldb::user_id_t fd, uint64_t offset, const void *src,
+                     uint64_t src_len, Status &error);
+  uint64_t ReadFile(lldb::user_id_t fd, uint64_t offset, void *dst,
+                    uint64_t dst_len, Status &error);
+
+private:
+  static FileCache *m_instance;
+
+  FDToFileMap m_cache;
+};
+}
+
+#endif