Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/csharp/src/Google.Protobuf.Test/JsonParserTest.cs

 #region Copyright notice and license
 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
@@ skipping 115 matching lines @@
         {
             // When we parse the "valueField": null part, we remember it... basically, it's one case
             // where explicit default values don't fully roundtrip.
             var message = new TestWellKnownTypes { ValueField = Value.ForNull() };
             var json = new JsonFormatter(new JsonFormatter.Settings(true)).Format(message);
             var parsed = JsonParser.Default.Parse<TestWellKnownTypes>(json);
             Assert.AreEqual(message, parsed);
         }
 
         [Test]
-        [TestCase(typeof(BoolValue), "true", true)]
         [TestCase(typeof(Int32Value), "32", 32)]
         [TestCase(typeof(Int64Value), "32", 32L)]
-        [TestCase(typeof(Int64Value), "\"32\"", 32L)]
         [TestCase(typeof(UInt32Value), "32", 32U)]
-        [TestCase(typeof(UInt64Value), "\"32\"", 32UL)]
         [TestCase(typeof(UInt64Value), "32", 32UL)]
         [TestCase(typeof(StringValue), "\"foo\"", "foo")]
         [TestCase(typeof(FloatValue), "1.5", 1.5f)]
         [TestCase(typeof(DoubleValue), "1.5", 1.5d)]
         public void Wrappers_Standalone(System.Type wrapperType, string json, object expectedValue)
         {
             IMessage parsed = (IMessage)Activator.CreateInstance(wrapperType);
             IMessage expected = (IMessage)Activator.CreateInstance(wrapperType);
             JsonParser.Default.Merge(parsed, "null");
             Assert.AreEqual(expected, parsed);
@@ skipping 778 matching lines @@
         /// Various tests use strings which have quotes round them for parsing or as the result
         /// of formatting, but without those quotes being specified in the tests (for the sake of readability).
         /// This method simply returns the input, wrapped in double quotes.
         /// </summary>
         internal static string WrapInQuotes(string text)
         {
             return '"' + text + '"';
         }
     }
 }