* code action for Merlin command refactor - open - unqualify
val unqualify : Code_action.t

* code action for Merlin command refactor - open - qualify
val qualify : Code_action.t

* code action for Merlin command refactor - open - unqualify
val unqualify : Code_action.t

* code action for Merlin command refactor - open - qualify
val qualify : Code_action.t
