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diff --git a/js/src/tests/test262/language/statements/switch/scope-lex-open-dflt.js b/js/src/tests/test262/language/statements/switch/scope-lex-open-dflt.js
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+// 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-switch-statement-runtime-semantics-evaluation
+description: Creation of new lexical environment (into `default` clause)
+info: |
+ 1. Let exprRef be the result of evaluating Expression.
+ 2. Let switchValue be ? GetValue(exprRef).
+ 3. Let oldEnv be the running execution context's LexicalEnvironment.
+ 4. Let blockEnv be NewDeclarativeEnvironment(oldEnv).
+ 5. Perform BlockDeclarationInstantiation(CaseBlock, blockEnv).
+ 6. Set the running execution context's LexicalEnvironment to blockEnv.
+ 7. Let R be the result of performing CaseBlockEvaluation of CaseBlock with
+ argument switchValue.
+ [...]
+features: [let]
+---*/
+
+let x = 'outside';
+var probeExpr, probeStmt;
+
+switch (probeExpr = function() { return x; }) {
+ default:
+ probeStmt = function() { return x; };
+ let x = 'inside';
+}
+
+assert.sameValue(probeExpr(), 'outside');
+assert.sameValue(probeStmt(), 'inside');
+
+reportCompare(0, 0);