reactiveui/ReactiveUI — pull request #366 by 2asoft (2013-08-16 16:14:32+00:00)
Title: Less string manipulation when interfaceifying a type name

Don't do any excessive string manipulation when we just want to insert a single letter.
This is about 10x faster, though the times are very tiny in both cases. e.g. see http://ideone.com/A04fga