Prep commits for new `avatar_url` handling (#4157)#4171

Merged

chrisbobbe merged 3 commits into

zulip:masterfrom

chrisbobbe:pr-prep-avatar-url

Aug 3, 2020

Commits on Aug 3, 2020

migrateMessages: Typecheck test file and use example data.
chrisbobbe
committed
msglist html: Type-check render-test.js and use example data.
chrisbobbe
committed
webViewHandleUpdates tests: Start typechecking, use example data.
chrisbobbe
committed