class RubyProf::DotPrinter

forget what measurement was made.
RubyProf.measure_mode so that we can display it. Otherwise it's easy to
Something of a hack, figure out which constant went with the

def mode_name
  RubyProf.constants.find{|c| RubyProf.const_get(c) == RubyProf.measure_mode}
end