#define_method inconsistency

Hi,

Just wondering if this is a bug:

class C
  define_method(:f){}
end
p C.public_instance_methods.include?('f')
C.send(:define_method, :f){}
p C.public_instance_methods.include?('f')

prints:

  true
  false

whereas I expected:

  true
  true

That is, #define_method makes private methods when sent from outside,
but makes public methods when called on `self'.  Actually, it outputs
the latter in irb, but not in naked ruby.

Using latest CVS.