Summary:
Now Yoga.cpp does not use the `YGPositionTypeRelative` value/constant, it uses `YGPositionTypeAbsolute` instead.
Now `YGPositionType` can only be `YGPositionTypeRelative` or `YGPositionTypeAbsolute`, so expressions `x == YGPositionTypeRelative` and `x != YGPositionTypeAbsolute` are equivalent.
The reasoning behind the change is that in all cases we actually check a node to be (or not to be) `absolute`, not `relative`. This will make a difference in the coming diffs in the stack when we will introduce a new value for the type: `static`.
We need to differentiate `static` and `relative` values t implement the `stacking context` feature in the W3C-compliant way (to fix bugs and avoid developer confusion). Read more here:
https://developer.mozilla.org/en-US/docs/Web/CSS/position
Changelog: [Internal] Internal change in Yoga.
Reviewed By: SidharthGuglani
Differential Revision: D22386733
fbshipit-source-id: 8e2c2b88b404660639f845783c8f93f0c62c0fbb
0767f4d105