Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lldb/source/Utility/IOObject.cpp

@@ -0,0 +1,15 @@
+//===-- IOObject.cpp --------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/IOObject.h"
+
+using namespace lldb_private;
+
+const IOObject::WaitableHandle IOObject::kInvalidHandleValue = -1;
+IOObject::~IOObject() = default;