code: func (self *Otto) Compile(filename string, src interface{}) (*Script, error) {
  	return self.CompileWithSourceMap(filename, src, nil)
  }
docs: // Compile will parse the given source and return a Script value or nil and
  // an error if there was a problem during compilation.
  //
  //      script, err := vm.Compile("", `var abc; if (!abc) abc = 0; abc += 2; abc;`)
  //      vm.Run(script)
  //