Summary:
X-link: https://github.com/facebook/react-native/pull/43311

Pull Request resolved: https://github.com/facebook/hermes/pull/1337

Changelog: [internal]

We've done this in a separate diff because the changes in Hermes don't propagate immediately to the React Native repository. We need to land the changes in JSI and Hermes first (in a backwards-compatible way) and then land this in a separate commit to make the method mandatory.

Reviewed By: neildhar

Differential Revision: D54413830

fbshipit-source-id: 3b89fe0e6697b0019544b73daa89d932db97b63a