Misko Hevery 9fb541787c refactor(core): Remove host TNode from getOrCreateTNode (#38707)
Host `TNode` was passed into `getOrCreateTNode` just so that we can
compute weather or not we are a root node. This was needed because
`previousOrParentTNode` could have `TNode` from `TView` other then
current `TView`. This is confusing mental model. Previous change
ensured that `previousOrParentTNode` must always be part of `TView`,
which enabled this change to remove the unneeded argument.

PR Close #38707
2020-09-28 16:15:59 -04:00
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