(val)
| 678 | var propIsEnumerable = Object.prototype.propertyIsEnumerable; |
| 679 | |
| 680 | function toObject(val) { |
| 681 | if (val === null || val === undefined) { |
| 682 | throw new TypeError('Object.assign cannot be called with null or undefined'); |
| 683 | } |
| 684 | |
| 685 | return Object(val); |
| 686 | } |
| 687 | |
| 688 | function shouldUseNative() { |
| 689 | try { |