[Typed AST] Fix destructure locs
[Typed AST] Fix destructure locs

Summary: The locations of the relevant expressions in the typed AST did not match those of the parsed AST.

Reviewed By: samwgoldman

Differential Revision: D13933142

fbshipit-source-id: d89efc0777041733c6e70c2c684709734d71502f

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