Bug 142862

* SUMMARY Runtime error in JIT'd class calling super() with arguments and superclass has default constructor. Doesn't happen if just called a few times. * TEST <script> var A = class A { }; var B = class B extends A { }; var C = class C extends B { constructor() { super(); } }; (function() { var x; for (var i = 0; i < 1e5; ++i) x = new C(false); // NOTE: argument is important console.log(x); })(); </script> * ACTUAL [Error] TypeError: undefined is not a constructor (evaluating 'super(...arguments)') * EXPECTED => no exceptions. * NOTES - adding a "constructor() { super(); }" to class B this works. - if the inspector is open this works, so the inspector likely prevents reaching a certain JIT tier