add_alias_impl

# File lib/rdoc/context.rb, line 242
  def add_alias_impl(an_alias, meth)
    new_meth = RDoc::AnyMethod.new an_alias.text, an_alias.new_name
    new_meth.is_alias_for = meth
    new_meth.singleton    = meth.singleton
    new_meth.params       = meth.params

    new_meth.comment      = an_alias.comment

    meth.add_alias new_meth

    add_method new_meth

    # aliases don't use ongoing visibility
    new_meth.visibility = meth.visibility

    new_meth
  end