Summary:
D38121921 (https://github.com/facebook/react-native/commit/5ddb9977e662a1b41dd7203605ca8480432fc06a) added a grid accessibilityRole to Flow typings and RNTester example shared with iOS. It it forwarded on Android, but doesn't have an equivalent UIAccessibilityTrait mapping.`RNTesterSnapshotTests/testScrollViewExample` reports an error:
```
Failure: RedBox errors: (
"Error setting property 'accessibilityRole' of RCTScrollView with tag #125: Invalid UIAccessibilityTraits 'grid'. should be one of: (
adjustable,
====================== 38 lines skipped ======================
) (NSInternalInconsistencyException)
Path: <unknown>
Line: 0
```
This adds the grid mapping, which I think should fix this error.
Changelog:
[ios][Fixed] - Map `accessibilityRole: grid` to `UIAccessibilityTraitNone`
Reviewed By: christophpurrer
Differential Revision: D40848904
fbshipit-source-id: 80f72bcd4e4826cc0d535693117a6c1e5fbd1d7d
Nick Gerleman
f3d9f2ea23