Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/mscorlib/system/threading/threadstartexception.cs

@@ -0,0 +1,39 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+//
+// <OWNER>[....]</OWNER>
+
+namespace System.Threading 
+{
+    using System;
+    using System.Runtime.Serialization;
+    using System.Runtime.InteropServices;
+
+    [Serializable]
+    public sealed class ThreadStartException : SystemException 
+    {
+        private ThreadStartException() 
+            : base(Environment.GetResourceString("Arg_ThreadStartException")) 
+        {
+            SetErrorCode(__HResults.COR_E_THREADSTART);
+        }
+
+        private ThreadStartException(Exception reason)
+            : base(Environment.GetResourceString("Arg_ThreadStartException"), reason)
+        {
+            SetErrorCode(__HResults.COR_E_THREADSTART);
+        }
+
+        //required for serialization
+        internal ThreadStartException(SerializationInfo info, StreamingContext context) 
+            : base(info, context) 
+        {
+        }
+   
+    }
+}
+
+