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/MainLoopBase.h b/linux-x64/clang/include/lldb/Host/MainLoopBase.h
new file mode 100644
index 0000000..3fee2b2
--- /dev/null
+++ b/linux-x64/clang/include/lldb/Host/MainLoopBase.h
@@ -0,0 +1,87 @@
+//===-- MainLoopBase.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 lldb_Host_posix_MainLoopBase_h_
+#define lldb_Host_posix_MainLoopBase_h_
+
+#include "lldb/Utility/IOObject.h"
+#include "lldb/Utility/Status.h"
+#include "llvm/Support/ErrorHandling.h"
+#include <functional>
+
+namespace lldb_private {
+
+// The purpose of this class is to enable multiplexed processing of data from
+// different sources without resorting to multi-threading. Clients can register
+// IOObjects, which will be monitored for readability, and when they become
+// ready, the specified callback will be invoked. Monitoring for writability is
+// not supported, but can be easily added if needed.
+//
+// The RegisterReadObject function return a handle, which controls the duration
+// of the monitoring. When this handle is destroyed, the callback is
+// deregistered.
+//
+// This class simply defines the interface common for all platforms, actual
+// implementations are platform-specific.
+class MainLoopBase {
+private:
+  class ReadHandle;
+
+public:
+  MainLoopBase() {}
+  virtual ~MainLoopBase() {}
+
+  typedef std::unique_ptr<ReadHandle> ReadHandleUP;
+
+  typedef std::function<void(MainLoopBase &)> Callback;
+
+  virtual ReadHandleUP RegisterReadObject(const lldb::IOObjectSP &object_sp,
+                                          const Callback &callback,
+                                          Status &error) {
+    llvm_unreachable("Not implemented");
+  }
+
+  // Waits for registered events and invoke the proper callbacks. Returns when
+  // all callbacks deregister themselves or when someone requests termination.
+  virtual Status Run() { llvm_unreachable("Not implemented"); }
+
+  // Requests the exit of the Run() function.
+  virtual void RequestTermination() { llvm_unreachable("Not implemented"); }
+
+protected:
+  ReadHandleUP CreateReadHandle(const lldb::IOObjectSP &object_sp) {
+    return ReadHandleUP(new ReadHandle(*this, object_sp->GetWaitableHandle()));
+  }
+
+  virtual void UnregisterReadObject(IOObject::WaitableHandle handle) {
+    llvm_unreachable("Not implemented");
+  }
+
+private:
+  class ReadHandle {
+  public:
+    ~ReadHandle() { m_mainloop.UnregisterReadObject(m_handle); }
+
+  private:
+    ReadHandle(MainLoopBase &mainloop, IOObject::WaitableHandle handle)
+        : m_mainloop(mainloop), m_handle(handle) {}
+
+    MainLoopBase &m_mainloop;
+    IOObject::WaitableHandle m_handle;
+
+    friend class MainLoopBase;
+    DISALLOW_COPY_AND_ASSIGN(ReadHandle);
+  };
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(MainLoopBase);
+};
+
+} // namespace lldb_private
+
+#endif // lldb_Host_posix_MainLoopBase_h_