Silence style warnings on ignored arguments.
Replace macro multiple-value-bind by its ancient original (and working!) version.
Inhibit inlining for values of debug >= 3, to help debugging further.
Demote warning on dynamic-extent of closure variables to style warning.
Promote these to status of pseudo special operator: with-temp-stack, temp-stack-push, temp-stack-push-values, temp-stack-pop, innermost-temp-stack-frame.
Recognize officially that load-time-value is a special operator.