(((lit clo nil (scope-value) scope-value) 'lexical) lexical)
((dyn scope-value 'dynamic ((lit clo nil (scope-value) scope-value) 'lexical)) dynamic)
(scope-value global)
((dyn err (lit clo nil (e) scope-value) (dyn scope-value 'inner (car 'atom))) inner)
(scope-value global)
; Captured lexical environment remains visible when no dynamic binding exists.
(((lit clo ((x . captured)) nil x)) captured)