Summary:
While refactoring `TextInput`, I noticed that we are allocating each of the exported imperative instance methods on every invocation of the component. This is wasteful because if the `ref` does not change, this just creates more garbage.
Instead, we only need to allocate them when we are actually going to assign them onto a `ref`.
Changelog:
[Internal]
Reviewed By: sammy-SC
Differential Revision: D41191440
fbshipit-source-id: 0120d67a9e29a3e0c3f42c3fa436381d6bec7619
Tim Yung
7bcc6f9b4d