code: func (a *Args) similar(r *Args, similar Similarity) bool {
  	if a.Elided != r.Elided || len(a.Values) != len(r.Values) {
  		return false
  	}
  	if similar == AnyValue {
  		return true
  	}
  	for i, l := range a.Values {
  		switch similar {
  		case ExactFlags, ExactLines:
  			if l != r.Values[i] {
  				return false
  			}
  		default:
  			if l.IsPtr() != r.Values[i].IsPtr() || (!l.IsPtr() && l != r.Values[i]) {
  				return false
  			}
  		}
  	}
  	return true
  }
docs: // similar returns true if the two Args are equal or almost but not quite
  // equal.