title: In Specman, how can I tell if a reference to a unit has the do-not-generate modifier in front of it?
body: <p>In Specman, how can I tell if a reference to a unit has the do-not-generate modifier, '!', at the reference's definition?</p>
  
  <p>e.g.</p>
  
  <pre><code>unit foo_u {
  }; 
  
  extend sys {
     foo : foo_u is instance;
     foo_ptr_generated : foo_u;
     keep foo_ptr_generated == foo;
     !foo_ptr_notgenerated : foo_u;
     connect_pointers() is also {
        foo_ptr_notgenerated = foo;
     };
  };
  </code></pre>
  
  <p>Without inspecting the code or relying on a naming convention, how can I tell that <CODE>foo_ptr_generated</CODE> went through Specman's constraint solver and <CODE>foo_ptr_notgenerated</CODE> was procedurally set?</p>