'Assignment to parameter in arguments object' in strict mode

[vsemozhetbyt]

function testFuncDeopt(namedArg) {
  const baz = arguments[0];
  namedArg = 'bar';
  function inner() { return namedArg; }
}

for (let i = 0; i < 1e3; i++) testFuncDeopt('foo');

There should be 3 conditions:

1. arguments mention (arguments, arguments[i], arguments.length).
2. Named parameter leaking in a lower scope.
3. Named parameter reassignment (it should be reassigned in the parent scope; reassignment in the lower scope does not cause deopt).