[Turbofan] Fix CallSuper argument order in BytecodeGraphBuilder.

test/mjsunit/regress/regress-642409.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+class SuperClass {
+}
+
+class SubClass extends SuperClass {
+  constructor() {
+    super();
+    this.doSomething();
+  }
+  doSomething() {
+  }
+}
+
+for (var i=0; i<50000; i++) {

[Michael Starzinger, 2016/09/06 11:11:22]

I assume this loop is here to trigger optimization. Can we instead formulate
this explicitly with runtime helpers to reduce runtime of the test? 

[rmcilroy, 2016/09/06 11:27:21]

Good point, done.

+  let inst = new SubClass();
+}