gate change to autoimport sort text
gate change to autoimport sort text

Summary:
we saw an improvement in autocomplete ranking without autoimport ranking being enabled. so i'm hunting for anything that might have changed and making sure it's gated, so that we can accurately test this feature.

before D38021433 (https://github.com/facebook/flow/commit/c62cfe17eab6145c9a224b814d340b323ab71250), all autoimports had a sortText of 100. after, their sortTexts were based on their ordering -- even though they weren't sorted by score.

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D39419050

fbshipit-source-id: a96920b89928d82903113e252086c6269d7c84a2

facebook/flow,mroch/flow,mroch/flow,mroch/flow,mroch/flow,mroch/flow,facebook/flow,facebook/flow,mroch/flow,mroch/flow,facebook/flow,facebook/flow,facebook/flow,facebook/flow