[es7] bailout Crankshaft in VisitDoExpression

test/mjsunit/harmony/regress/regress-546967.js

Index: test/mjsunit/harmony/regress/regress-546967.js
diff --git a/test/mjsunit/harmony/regress/regress-546967.js b/test/mjsunit/harmony/regress/regress-546967.js
new file mode 100644
index 0000000000000000000000000000000000000000..0315c436344b08abd8ecc25d915c9fb9f93f66c5
--- /dev/null
+++ b/test/mjsunit/harmony/regress/regress-546967.js
@@ -0,0 +1,16 @@
+// Copyright 2015 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: --harmony-do-expressions --allow-natives-syntax
+
+function func1() {
+  for (var i = 0; i < 64; ++i) func2();
+}
+
+%OptimizeFunctionOnNextCall(func1);
+func1();
+
+function func2() {
+  var v = do {};
+}