* sly.el (sly-canonicalized-location, sly-choose-overlay-for-sexp)
(sly--display-source-location, sly--pop-to-source-location)
(sly-recompile-locations,sly-recompile-location): Use
`sly-move-to-source-location'.
(sly-move-to-source-location): Renamed from
`sly--move-to-source-location'

* sly.el (define-button-type sldb-frame): Default action is to
toggle details.
(sldb-frame-button): Extract spec and put it in the `part-args'
property.

* contrib/sly-mrepl.el (define-button-type sly-mrepl-part): rename
`object-idx' to `entry-idx' for clarity.
(sly-mrepl--copy-part-to-repl): New function just for copying REPL
parts.
(sly-mrepl--copy-to-repl-after): New buffer-local variable.
(sly-mrepl--copy-objects-to-repl): New function for copying any
object generically.
(listener): Don't take `note' arg and execute
`sly-mrepl--copy-objects-to-repl'
(sly-mrepl--eval-for-repl): Better protocol.
(sly-inspector-copy-part-to-repl, sldb-copy-part-to-repl)
(sly-trace-dialog-copy-part-to-repl): Adapt to new protocol.
(sly-mrepl--insert-call): Take a `spec' argument.
(sly-trace-dialog-copy-call-to-repl): Use new protocol of
`sly-mrepl--eval-for-repl'.
(sly-mrepl-sync-package-and-default-directory): Set
`sly-mrepl--copy-to-repl-after'.

* contrib/sly-mrepl.el (:unfreeze-prompt): Remove frequently failing
assertion assertion. Have to investigate.

* contrib/sly-trace-dialog.el (sly-trace-dialog--shortcut-menu): Avoid compiler warning.
(define-button-type sly-trace-dialog-spec): `part-args' property
was simplified.

* contrib/swank-mrepl.lisp (copy-values-to-repl): Don't take NOTE arg.
(:sync-package-and-default-directory): Don't pass notes to
COPY-VALUES-TO-REPL.
(*saved-objects-note*): Removed.
(globally-save-object): Don't set *SAVED-OBJECTS-NOTE*
(:copy-to-repl): Simplified.

* lib/lisp/swank-backend.lisp (frame-arguments): New interface.

* lib/lisp/backend/swank-allegro.lisp (frame-arguments): New
implementation of interface. Probably not very good.

* lib/lisp/backend/swank-ccl.lisp (frame-call): Removed implementation.

* lib/lisp/backend/swank-sbcl.lisp (frame-call): Removed implementation.