// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: Destructuring initializer is an unresolvable reference
template: error
info: |
    13.3.3.7 Runtime Semantics: KeyedBindingInitialization

    BindingElement : BindingPattern Initializeropt

    [...]
    3. If Initializer is present and v is undefined, then
       a. Let defaultValue be the result of evaluating Initializer.
       b. Let v be GetValue(defaultValue).
       c. ReturnIfAbrupt(v).

    6.2.3.1 GetValue (V)

    1. ReturnIfAbrupt(V).
    2. If Type(V) is not Reference, return V.
    3. Let base be GetBase(V).
    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
---*/

//- elems
{ x: y = unresolvableReference }
//- vals
{}
//- error
ReferenceError