after-insert in drscheme:unit:program-editor-mixin

Called after items are inserted into the editor (and after the display is refreshed; use on-insert and begin-edit-sequence to avoid extra refreshes when after-insert modifies the editor).

See also can-insert? and on-edit-sequence.

No internals locks are set when this method is called.

• (send a-drscheme:unit:program-editor-mixin after-insert start len) -> void
     start : number
     len : number

  Calls the super method.

  Resets an error higlighting.