class IDL::AST::Module

def search_links(_name)
  _key = _name.downcase.intern
  node = @introduced[_key]
  if not node.nil? and node.name != _name
    raise "\"#{_name}\" clashed with \"#{node.name}\"."
  end
  if node.nil? && @next
    node = @next.search_links(_name)
  end
  node
end