Summary:
This makes the Text component more consistent with the contracts implemented by the Touchable* components.
**Test plan (required)**
Verified the event object gets passed to the `onPress` and `onLongPress` handlers in a test app. Also, this change is being used by my team's app.
Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/9657
Differential Revision: D3790550
fbshipit-source-id: 026b579ef6b354d9519abd5e9a92f0d562159132
158a73b8a5