(debugger-outer-load-read-function): New variable.

(debugger-outer-load-read-function): New variable.
(debug): Bind load-read-function to nil; save old value
in debugger-outer-load-read-function and restore at end.
(debugger-eval-expression): Handle load-read-function
like other magic variables.

(debugger-outer-overriding-local-map): New variable.
(debug): Bind overriding-local-map to nil; save old value
in debugger-outer-overriding-local-map and restore at end.
(debugger-eval-expression): Handle overriding-local-map
like other magic variables.