title: Eiffel: a way to call precursor redefined feature on another function
body: <p>I'm looking for a way to call <code>Precursor</code> on another feature. The context is that I redefine a routine calling another heir's feature that calls mine, and I'd like to call it explicitly. Is there a way to do something such as in java <code>Precursor.feature_a</code>. </p>
  
  <p><strong>If not</strong>, the only alternative I find is to write a <code>feature_a_implementation</code> and call it from redefined feature. Is there a particular reason not to have this mechanism? The consequences of doing that would be to define 2 times the contract of <code>feature_a</code> into <code>feature_a</code> and <code>feature_a_implementation</code></p>