Parse eagerly inside block scopes.

test/mjsunit/regress/regress-4255-4.js

Index: test/mjsunit/regress/regress-4255-4.js
diff --git a/test/mjsunit/regress/regress-4255-4.js b/test/mjsunit/regress/regress-4255-4.js
new file mode 100644
index 0000000000000000000000000000000000000000..4de62d905bb0b738058d1a65a12b285be3711663
--- /dev/null
+++ b/test/mjsunit/regress/regress-4255-4.js
@@ -0,0 +1,24 @@
+// 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.
+
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+// comments to trigger lazy compilation comments to trigger lazy compilation
+
+'use strict';
+class C { constructor() {} }
+// Trigger OSR
+for (var i = 0; i < 1000000; i++);