Make ScriptArguments an interface so inspector console's clients are not limited to JavaScript.
Created attachment 118021 [details] Patch.
Comment on attachment 118021 [details] Patch. All of these patches has the same potential problem: You're making possibly hot classes virtual. In order for any of these patches to be reviewed for real, you would need to provide performance numbers that show that you've not regessed v8/jsc performance on some common benchmark (v8 or sunspider for example).