Changes from code review
diff --git a/src/ProtocolBuffers.Test/TestWriterFormatJson.cs b/src/ProtocolBuffers.Test/TestWriterFormatJson.cs
index 1958df0..1a1a480 100644
--- a/src/ProtocolBuffers.Test/TestWriterFormatJson.cs
+++ b/src/ProtocolBuffers.Test/TestWriterFormatJson.cs
@@ -43,8 +43,8 @@
.Build();
using (TextWriter output = new StringWriter())
- using (AbstractWriter writer = JsonFormatWriter.CreateInstance(output))
{
+ ICodedOutputStream writer = JsonFormatWriter.CreateInstance(output);
writer.WriteMessageStart(); //manually begin the message, output is '{'
writer.Flush();