[Haskell-cafe] GHCI Feature Request: Last Successful Compilation State Saved

Hi all, I would like for the GHCI interpreter to save its environment before reloading a file and allowed the user to revert back to that state if the compilation was unsuccessful. Many times I've changed files, loaded them, hit a compilation error and needed, for example, the inferred type signature of some function. Even though that function hasn't been changed I have to either fix my code, undo a bunch of changes or comment out the last change I made and reload in order to do a ":type" on the function. This really breaks the flow of development. Thanks for considering. -deech