ES6 Set constructor does not follow the spec

• Component: JavaScriptCore
• Status: RESOLVED FIXED

According to the latest draft of the specification and other implementations of ES6's Set, "new Set" should optionally take an iterable instead of variable arguments. In trunk (and Safari 8 and iOS 8), SetConstructor::constructSet processes variable arguments.

Additionally, calling "Set(...)" should always throw a TypeError regardless of its arguments. Currently SetConstructor::callSet does not raise an exception when invoked as "Set()" without arguments.

This has been fixed as of iOS 9.