CALayer has a problem aliasing methods

[eloy.de.enige@…]

This only seems to happen on CALayer subclasses:

% cat t.rb    
framework 'QuartzCore'

class X < CALayer
  attr_accessor :foo
  alias_method :foo?, :foo
end

x = X.new
p x.foo?
x.foo = true
p x.foo?

% macruby t.rb
/Users/eloy/Documents/DEVELOPMENT/MacRuby/macruby/t.rb:4:in `block': undefined method `foo' for class `X' (NameError)
	from /Users/eloy/Documents/DEVELOPMENT/MacRuby/macruby/t.rb:1:in `<main>'

[lsansonetti@…]

Should be fixed in r3940.