Fix one more missing c0_ < 0 check in scanner

test/mjsunit/regress/regress-crbug-433766.js

Index: test/mjsunit/regress/regress-crbug-433766.js
diff --git a/test/mjsunit/regress/regress-crbug-433766.js b/test/mjsunit/regress/regress-crbug-433766.js
new file mode 100644
index 0000000000000000000000000000000000000000..fae94837d464d98614e814a12da2a21ba6f17fa0
--- /dev/null
+++ b/test/mjsunit/regress/regress-crbug-433766.js
@@ -0,0 +1,16 @@
+// 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.
+
+var filler = "//" + new Array(('@')).join('x');
+
+// Test strict eval in global context.
+eval(
+  "'use strict';" +
+  "var x = 23;" +
+  "var f = function bozo1() {" +
+  "  return x;" +
+  "};" +
+  "f;" +
+  filler
+)();