Refactoring of CodedInputStream.Read??? to use boolean return with out param.
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs
index 79567d2..55f52f7 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs
@@ -276,19 +276,19 @@
               if (unknownFields == null) {

                 unknownFields = pb::UnknownFieldSet.CreateBuilder(this.UnknownFields);

               }

-              ParseUnknownField(input, unknownFields, extensionRegistry, tag);

+              ParseUnknownField(input, unknownFields, extensionRegistry, tag, field_name);

               break;

             }

             case 10: {

-              Normal = input.ReadString();

+              result.hasNormal |= input.ReadString(ref result.normal_);

               break;

             }

             case 18: {

-              OptionsMessage_ = input.ReadString();

+              result.hasOptionsMessage_ |= input.ReadString(ref result.optionsMessage_);

               break;

             }

             case 26: {

-              CustomName = input.ReadString();

+              result.hasCustomName |= input.ReadString(ref result.customized_);

               break;

             }

           }