This is just for clarity at first.
Before:
- mountFiberRecursively accepts a set of children and flag that says
whether to just do one
- updateFiberRecursively accepts a fiber and loops over its children
- unmountFiberChildrenRecursively accepts a fiber and loops over its
children
After:
- mountFiberRecursively accepts a Fiber and calls
mountChildrenRecursively
- updateFiberRecursively accepts a Fiber and calls
updateChildrenRecursively
- unmountFiberRecursively accepts a Fiber and calls
unmountChildrenRecursively
- mountChildrenRecursively accepts a set of children and loops over each
one
- updateChildrenRecursively accepts a set of children and loops over
each one
- unmountChildrenRecursively accepts a set of children and loops over
each one
So now there's one place where things happens for the single item and
one place where we do the loop.