move-to in pasteboard%

Moves a specified snip to a given location in the editor.

Snip locations in a pasteboard can be changed by the system in response to other method calls, and such changes do not go through this method; use on-move-to to monitor snip position changes.

• (send a-pasteboard move-to snip x y) -> void
     snip : snip% object
     x : real number
     y : real number