Remove `Loc.btwn` related to JSX fragments
Remove `Loc.btwn` related to JSX fragments

Summary: As in the last diff, all that was needed was to pass down the expression location from above

Reviewed By: mroch

Differential Revision: D14014056

fbshipit-source-id: f1e7d65fe71507bf9f4cf7f6805d2c9de1f4b2f5

nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow