A few performance tweaks of the ICodedOutputStream interface/implementation
diff --git a/src/ProtocolBuffers/ICodedOutputStream.cs b/src/ProtocolBuffers/ICodedOutputStream.cs
index f008e79..db7ea6e 100644
--- a/src/ProtocolBuffers/ICodedOutputStream.cs
+++ b/src/ProtocolBuffers/ICodedOutputStream.cs
@@ -79,7 +79,8 @@
void WriteMessageSetExtension(int fieldNumber, string fieldName, ByteString value);
void WriteArray(FieldType fieldType, int fieldNumber, string fieldName, System.Collections.IEnumerable list);
void WritePackedArray(FieldType fieldType, int fieldNumber, string fieldName, System.Collections.IEnumerable list);
- void WritePackedArray(FieldType fieldType, int fieldNumber, string fieldName, int calculatedSize, System.Collections.IEnumerable list);
+ void WriteArray<T>(FieldType fieldType, int fieldNumber, string fieldName, System.Collections.Generic.IEnumerable<T> list);
+ void WritePackedArray<T>(FieldType fieldType, int fieldNumber, string fieldName, int calculatedSize, System.Collections.Generic.IEnumerable<T> list);
void WriteField(FieldType fieldType, int fieldNumber, string fieldName, object value);
void Flush();
}