Cleanup: Move mjsunit/regress-*.js into mjsunit/regress/.

test/mjsunit/regress-sync-optimized-lists.js

-// Copyright 2014 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 --block-concurrent-recompilation
-
-function Ctor() {
-  this.a = 1;
-}
-
-function get_closure() {
-  return function add_field(obj, osr) {
-    obj.c = 3;
-    var x = 0;
-    if (osr) %OptimizeOsr();
-    for (var i = 0; i < 10; i++) {
-      x = i + 1;
-    }
-    return x;
-  }
-}
-
-var f1 = get_closure();
-f1(new Ctor(), false);
-f1(new Ctor(), false);
-
-%OptimizeFunctionOnNextCall(f1, "concurrent");
-
-// Kick off concurrent recompilation and OSR.
-var o = new Ctor();
-f1(o, true);
-
-// Flush the optimizing compiler's queue.
-%NotifyContextDisposed();
-
-// Trigger deopt.
-o.c = 2.2;
-
-var f2 = get_closure();
-f2(new Ctor(), true);