Fix && and || parsing

tests/jerry/and_or.js

@@ -0,0 +1,36 @@
+// Copyright 2014 Samsung Electronics Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+function fail() {
+  assert (0);
+  return true;
+}
+
+if (false && fail()) {
+  assert (0);
+}
+
+if (true && false && fail()) {
+  assert (0);
+}
+
+if (true || fail()) {
+} else {
+  assert (0);
+}
+
+if (false || true || fail()) {
+} else {
+  assert (0);
+}