super(where);  this.prefix = prefix; this.ident = ident.intern(); this.args = args; this.tapeType = null;
this(where, new JThisExpression(null), ident, args);
  public JMethodCallExpression(TokenReference where,			       JExpression prefix,			       String ident,			       JExpression[] args)  {    super(where);    this.prefix = prefix;    this.ident = ident.intern();	// $$$ graf 010530 : why intern ?    this.args = args;    this.tapeType = null;  }