macro-debugger: fixed binder discovery for lambda Please propagate this change to the release branch.
macro-debugger: fixed binder discovery for lambda
Please propagate this change to the release branch.

svn: r16926

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket