Finished adding find tag by name
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs
index 4ba2149..4cf74c9 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs
@@ -63,6 +63,8 @@
   [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]

   public sealed partial class TestEmbedOptimizedForSize : pb::GeneratedMessage<TestEmbedOptimizedForSize, TestEmbedOptimizedForSize.Builder> {

     private static readonly TestEmbedOptimizedForSize defaultInstance = new Builder().BuildPartial();

+    private static readonly string[] _testEmbedOptimizedForSizeFieldNames = new string[] { "optional_message", "repeated_message" };

+    private static readonly uint[] _testEmbedOptimizedForSizeFieldTags = new uint[] { 10, 18 };

     public static TestEmbedOptimizedForSize DefaultInstance {

       get { return defaultInstance; }

     }

@@ -119,11 +121,12 @@
     

     public override void WriteTo(pb::ICodedOutputStream output) {

       int size = SerializedSize;

+      string[] field_names = _testEmbedOptimizedForSizeFieldNames;

       if (hasOptionalMessage) {

-        output.WriteMessage(1, "optional_message", OptionalMessage);

+        output.WriteMessage(1, field_names[0], OptionalMessage);

       }

       if (repeatedMessage_.Count > 0) {

-        output.WriteArray(pbd::FieldType.Message, 2, "repeated_message", repeatedMessage_);

+        output.WriteArray(pbd::FieldType.Message, 2, field_names[1], repeatedMessage_);

       }

       UnknownFields.WriteTo(output);

     }

@@ -256,6 +259,18 @@
         uint tag;

         string field_name;

         while (input.ReadTag(out tag, out field_name)) {

+          if(tag == 0 && field_name != null) {

+            int field_ordinal = global::System.Array.BinarySearch(_testEmbedOptimizedForSizeFieldNames, field_name, global::System.StringComparer.Ordinal);

+            if(field_ordinal >= 0)

+              tag = _testEmbedOptimizedForSizeFieldTags[field_ordinal];

+            else {

+              if (unknownFields == null) {

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

+              }

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

+              continue;

+            }

+          }

           switch (tag) {

             case 0: {

               throw pb::InvalidProtocolBufferException.InvalidTag();