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diff --git a/test/language/expressions/generators/dstr-obj-ptrn-prop-id.js b/test/language/expressions/generators/dstr-obj-ptrn-prop-id.js
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+++ b/test/language/expressions/generators/dstr-obj-ptrn-prop-id.js
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+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/gen-func-expr.template
+/*---
+description: Binding as specified via property name and identifier (generator function expression)
+esid: sec-generator-function-definitions-runtime-semantics-evaluation
+es6id: 14.4.14
+features: [destructuring-binding]
+flags: [generated]
+info: |
+ GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
+
+ [...]
+ 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
+ GeneratorBody, scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+var f;
+f = function*({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next();
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');