statements/generators/params-trailing-comma-length.js has incorrect generator syntax

[JosephPecoraro]

Test: test/statements/generators/params-trailing-comma-length.js has incorrect syntax:

function one*(a,) {}
function two*(a,b,) {}

It should be:

function* one(a,) {}
function* two(a,b,) {}

[rwaldron]

@JosephPecoraro please sign the CLA: http://tc39.github.io/test262-cla/ and ping back here when that's complete. Thanks!!

[leobalter]

This is fixed on #762