Added Object.getOwnPropertyDescriptors definition to src and generated the built

Author: taras

lib/lib.es2017.object.d.ts

@@ -42,4 +42,10 @@ interface ObjectConstructor {
      * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
      */
     entries(o: any): [string, any][];
+
+    /**
+    * Returns an object containing all own property descriptors of an object
+    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
+    */
+    getOwnPropertyDescriptors<T>(o: T): {[P in keyof T]: TypedPropertyDescriptor<T[P]>} & { [x: string]: PropertyDescriptor };
 }

src/lib/es2017.object.d.ts

@@ -22,4 +22,10 @@ interface ObjectConstructor {
      * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
      */
     entries(o: any): [string, any][];
+
+    /**
+    * Returns an object containing all own property descriptors of an object
+    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
+    */
+    getOwnPropertyDescriptors<T>(o: T): {[P in keyof T]: TypedPropertyDescriptor<T[P]>} & { [x: string]: PropertyDescriptor };
 }