[New] ES2015+: add OrdinaryGetOwnProperty

es2015.js

@@ -1117,6 +1117,31 @@ var ES6 = assign(assign({}, ES5), {
 		return this.ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current);
 	},
 
+	// http://www.ecma-international.org/ecma-262/6.0/#sec-ordinarygetownproperty
+	OrdinaryGetOwnProperty: function OrdinaryGetOwnProperty(O, P) {
+		if (this.Type(O) !== 'Object') {
+			throw new $TypeError('Assertion failed: O must be an Object');
+		}
+		if (!this.IsPropertyKey(P)) {
+			throw new $TypeError('Assertion failed: P must be a Property Key');
+		}
+		if (!has(O, P)) {
+			return void 0;
+		}
+		if (!$gOPD) {
+			// ES3 fallback
+			var arrayLength = this.IsArray(O) && P === 'length';
+			var regexLastIndex = this.IsRegExp(O) && P === 'lastIndex';
+			return {
+				'[[Configurable]]': !(arrayLength || regexLastIndex),
+				'[[Enumerable]]': $isEnumerable(O, P),
+				'[[Value]]': O[P],
+				'[[Writable]]': true
+			};
+		}
+		return this.ToPropertyDescriptor($gOPD(O, P));
+	},
+
 	// http://www.ecma-international.org/ecma-262/6.0/#sec-arraycreate
 	ArrayCreate: function ArrayCreate(length) {
 		if (!this.IsInteger(length) || length < 0) {

operations/2015.js

@@ -50,6 +50,7 @@ module.exports = {
 	NormalCompletion: 'https://ecma-international.org/ecma-262/6.0/#sec-normalcompletion',
 	ObjectCreate: 'https://ecma-international.org/ecma-262/6.0/#sec-objectcreate',
 	OrdinaryDefineOwnProperty: 'http://www.ecma-international.org/ecma-262/6.0/#sec-ordinarydefineownproperty',
+	OrdinaryGetOwnProperty: 'http://www.ecma-international.org/ecma-262/6.0/#sec-ordinarygetownproperty',
 	OrdinaryHasInstance: 'https://ecma-international.org/ecma-262/6.0/#sec-ordinaryhasinstance',
 	RegExpBuiltinExec: 'https://ecma-international.org/ecma-262/6.0/#sec-regexpbuiltinexec',
 	RegExpExec: 'https://ecma-international.org/ecma-262/6.0/#sec-regexpexec',