code: func relName(v Value, i Instruction) string {
  	var from *types.Package
  	if i != nil {
  		from = i.Parent().pkg()
  	}
  	switch v := v.(type) {
  	case Member: // *Function or *Global
  		return v.RelString(from)
  	case *Const:
  		return v.RelString(from)
  	}
  	return v.Name()
  }
docs: // relName returns the name of v relative to i.
  // In most cases, this is identical to v.Name(), but references to
  // Functions (including methods) and Globals use RelString and
  // all types are displayed with relType, so that only cross-package
  // references are package-qualified.
  //