For functions there's cmd-R. Declarations I'm not sure though, I think this would need a language specific plugin. One thing though, cmd-R doesn't work very we

For functions there's cmd-R. Declarations I'm not sure though, I think this would need a language specific plugin. One thing though, cmd-R doesn't work very well with closures, it gets a bit messy - the good thing is that you can just start typing words you know from the function's name and it will list anything relevant.