1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js b/js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js
new file mode 100644
index 0000000000..b24988864a
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+++ b/js/src/tests/test262/language/statements/for-in/scope-body-lex-close.js
@@ -0,0 +1,42 @@
+// 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-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
+description: >
+    Removal of lexical environment for the initial evaluation of the statement
+    body
+info: |
+    IterationStatement : for ( ForDeclaration of AssignmentExpression ) Statement
+
+    [...]
+    2. Return ? ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
+       lexicalBinding, labelSet).
+
+    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
+
+    [...]
+    5. Repeat
+       [...]
+       i. Let result be the result of evaluating stmt.
+       j. Set the running execution context's LexicalEnvironment to oldEnv.
+       k. If LoopContinues(result, labelSet) is false, return ?
+          IteratorClose(iterator, UpdateEmpty(result, V)).
+       l. If result.[[Value]] is not empty, let V be result.[[Value]].
+features: [let]
+---*/
+
+let x = 'outside';
+var probeDecl, probeBody;
+
+for (
+    let [x, _ = probeDecl = function() { return x; }]
+    in
+    { i: 0 }
+  )
+  probeBody = function() { return x; };
+
+assert.sameValue(probeDecl(), 'i', 'reference from ForDeclaration');
+assert.sameValue(probeBody(), 'i', 'reference from statement body');
+assert.sameValue(x, 'outside');
+
+reportCompare(0, 0);