Fix attributes of length property for builtin objects (#3556)

* length property has the attributes {[[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true} based on ECMA-262 v6, 19.2.4.1

JerryScript-DCO-1.0-Signed-off-by: HyukWoo Park hyukwoo.park@samsung.com

tests/jerry-test-suite/es2015/25/25.04/25.04.05/25.04.05-001.js

@@ -13,4 +13,4 @@
  * limitations under the License.
  */
 
-assert (Promise.prototype.length === 1);
+assert (Promise.length === 1);

tests/jerry-test-suite/es51-profile-list

@@ -1110,7 +1110,6 @@
 ./15/15.03/15.03.03/15.03.03.01/15.03.03.01-002.js
 ./15/15.03/15.03.03/15.03.03.01/15.03.03.01-003.js
 ./15/15.03/15.03.03/15.03.03.01/15.03.03.01-004.js
-./15/15.03/15.03.03/15.03.03.02/15.03.03.02-001.js
 ./15/15.03/15.03.04/15.03.04.02/15.03.04.02-001.js
 ./15/15.03/15.03.04/15.03.04.02/15.03.04.02-002.js
 ./15/15.03/15.03.04/15.03.04.02/15.03.04.02-003.js

tests/jerry/es2015/length-property.js

@@ -0,0 +1,102 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * 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.
+ */
+
+var builtin_objects = [
+  Array,
+  ArrayBuffer,
+  Boolean,
+  DataView,
+  Date,
+  Error,
+  EvalError,
+  Function,
+  Map,
+  Number,
+  Object,
+  Promise,
+  RangeError,
+  ReferenceError,
+  RegExp,
+  Set,
+  String,
+  Symbol,
+  SyntaxError,
+  TypeError,
+  URIError,
+  WeakMap,
+  WeakSet,
+];
+
+var builtin_prototypes = [Function.prototype]
+
+var builtin_typedArrays = [
+  Float32Array,
+  Float64Array,
+  Int16Array,
+  Int32Array,
+  Int8Array,
+  Uint16Array,
+  Uint32Array,
+  Uint8Array,
+  Uint8ClampedArray,
+];
+
+
+(function () {
+  /* each length property is configurable */
+  var desc;
+  
+  for (obj of builtin_objects) {
+    desc = Object.getOwnPropertyDescriptor(obj, 'length');                                                                                                                    
+    assert(desc.writable === false);
+    assert(desc.enumerable === false);
+    assert(desc.configurable === true);
+  }
+  
+  for (proto of builtin_prototypes) {
+    desc = Object.getOwnPropertyDescriptor(proto, 'length');                                                                                                                    
+    assert(desc.writable === false);
+    assert(desc.enumerable === false);
+    assert(desc.configurable === true);
+  }
+  
+  for (ta of builtin_typedArrays) {
+    desc = Object.getOwnPropertyDescriptor(ta, 'length');                                                                                                                    
+    assert(desc.writable === false);
+    assert(desc.enumerable === false);
+    assert(desc.configurable === true);
+  }
+})();
+
+(function () {
+  /* each length property can be deleted */
+  for (obj of builtin_objects) {
+    assert(obj.hasOwnProperty('length') === true);
+    assert(delete obj.length);
+    assert(obj.hasOwnProperty('length') === false);
+  }
+
+  for (proto of builtin_prototypes) {
+    assert(proto.hasOwnProperty('length') === true);
+    assert(delete proto.length);
+    assert(proto.hasOwnProperty('length') === false);
+  }
+
+  for (ta of builtin_typedArrays) {
+    assert(ta.hasOwnProperty('length') === true);
+    assert(delete ta.length);
+    assert(ta.hasOwnProperty('length') === false);
+  }
+})();

tests/jerry/es5.1/func-length.js

@@ -16,4 +16,4 @@ var desc = Object.getOwnPropertyDescriptor(Function, "length");
 assert(desc.value === 1 &&
         desc.writable === false &&
         desc.enumerable === false &&
-        desc.configurable === false);
+        desc.configurable === false);