prompter-source.lisp: unexport initial-suggestions, use constructor only
prompter-source.lisp: unexport initial-suggestions, use constructor
only

constructor can either be a list, or a function

if it is a list initial-suggestions will be assigned to it
automatically
if it is a function, it will be invoked and initial-suggestinos will
be assigned to its result

jmercouris/NeXT,jmercouris/NeXT