This is what bouncing the rubble looks like.
1. Swift 3 will no longer allow mutable variables as parameters.
Instead, your parameters will be immutable, or reference (inout). To fix
this, you can assign your immutable variable to a mutable one
(immutability is always head immutability in swift), or put this weird
statement in your function:
var i = i (which you may think causes i to now be mutable, but in
actuality declares a NEW variable to shadow the old).
2. Swift 3 will no longer accept ++. You must write += 1.
Please, D, don't ever do this kind of stuff! I just gained about 45
warnings in my iOS project. Most of the var function parameters were
suggested by the IDE...
-Steve
