Fix parse of simple for statement.

Related issue: #156

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com

tests/jerry/for.js

@@ -1,4 +1,5 @@
-// Copyright 2014 Samsung Electronics Co., Ltd.
+// Copyright 2014-2015 Samsung Electronics Co., Ltd.
+// Copyright 2015 University of Szeged.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,15 +13,18 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// 1.
 var i = 0;
 for (; i < 100; i++) {
 }
 assert(i == 100);
 
+// 2.
 for (var j = 0; j < 100; j++) {
 }
 assert(j == 100);
 
+// 3.
 for (i = 0; ; ) {
   if (i == 100) {
     break;
@@ -30,6 +34,7 @@ for (i = 0; ; ) {
 }
 assert(i == 100);
 
+// 4.
 for (i = 0; i < 10; i++) {
   for (j = 0; j < 10; j++) {
   }
@@ -38,3 +43,36 @@ assert(i != 100);
 assert(j != 100);
 assert(i == 10);
 assert(j == 10);
+
+// 5.
+s = '';
+for (
+var i = {x: 0};
+
+ i.x < 2
+;
+ i.x++
+
+)
+ {
+  s += i.x;
+}
+
+assert (s === '01');
+
+// 6.
+s = '';
+for (
+var i = {x: 0};
+
+ i.x < 2
+;
+
+ i.x++
+
+)
+ {
+  s += i.x;
+}
+
+assert (s === '01');

tests/jerry/regression-test-issue-156.js

@@ -0,0 +1,19 @@
+// Copyright 2015 Samsung Electronics Co., Ltd.
+// Copyright 2015 University of Szeged.
+//
+// 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 dec(x) { return x - 1 };
+for (var i = 5; i > 0; i = dec(i)) {}
+for (var i = 11; i = dec (i); i--) {}
+for (var i = dec (12); i > 0; i--) {}