[turbofan] Add deopt point for InternalSetPrototype in VisitObjectLiteral.

test/mjsunit/compiler/regress-572409.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.
+
+var o = function() {};
+function f() {
+  var lit = { __proto__: o  };
+  o instanceof RegExp;
+}
+f();