Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-806388.js

@@ -0,0 +1,17 @@
+// Copyright 2018 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.
+
+// Flags: --allow-natives-syntax --enable-slow-asserts --expose-gc
+
+class Derived extends Array {
+    constructor(a) { throw "error" }
+}
+
+// Derived is not a subclass of RegExp
+let o = Reflect.construct(RegExp, [], Derived);
+o.lastIndex = 0x1234;
+%HeapObjectVerify(o);
+
+gc();
+%HeapObjectVerify(o);