| // Copyright (c) 2012 Ecma International. All rights reserved. | |
| // This code is governed by the BSD license found in the LICENSE file. | |
| /*--- | |
| es5id: 11.13.2-6-15-s | |
| esid: sec-assignment-operators | |
| description: > | |
| Strict Mode - SyntaxError is thrown if the identifier arguments | |
| appear as the LeftHandSideExpression of a Compound Assignment | |
| operator(+=) | |
| flags: [onlyStrict] | |
| negative: | |
| phase: parse | |
| type: SyntaxError | |
| ---*/ | |
| $DONOTEVALUATE(); | |
| arguments += 20; |