src/generators/yield-identifier-spread-strict.case

// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
desc: >
  It's an early error if the AssignmentExpression is a function body with yield
  as an identifier in strict mode.
template: default
info: |
  Spread Properties

  PropertyDefinition[Yield]:
    (...)
    ...AssignmentExpression[In, ?Yield]
features: [object-spread]
flags: [onlyStrict]
negative:
  phase: parse
  type: SyntaxError
---*/

//- setup
$DONOTEVALUATE();
//- body
  return {
     ...(function() {
        var yield;
        throw new Test262Error();
     }()),
  }