Ability to view github.com pull requests
It's not necessarily to work just with github.com pull requests. I'd like to see all code changes between two branches in one window to review my/colleagues changes.
What you mean is some soft of multi-file semanticmerge which is something we're working on.
But, this feature requires a strong integration with the version control, maybe even building a full GUI client. Anyway, it will be dependent on the version control, so not a general solution for SVN, git, plastic and so on, but one custom one for each.
Viktor Lova commented
Also, this idea doesn't need tracking of methods moved across files (but this idea is good too). I just want to review pull requests with semantic merge tool.