| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-__proto__-property-names-in-object-initializers |
| es6id: B.3.1 |
| description: Duplicate `__proto__` property |
| info: | |
| It is a Syntax Error if PropertyNameList of PropertyDefinitionList contains |
| any duplicate entries for "__proto__" and at least two of those entries |
| were obtained from productions of the form |
| PropertyDefinition : PropertyName : AssignmentExpression . |
| negative: |
| phase: parse |
| type: SyntaxError |
| ---*/ |
| |
| $DONOTEVALUATE(); |
| |
| ({ |
| __proto__: null, |
| other: null, |
| '__proto__': null |
| }); |
