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-rw-r--r--js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js31
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diff --git a/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js b/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
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+++ b/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
@@ -0,0 +1,31 @@
+// 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-functiondeclarationinstantiation
+description: >
+ sloppy direct evals in params introduce vars
+info: |
+ [...]
+ 20. Else,
+ a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
+ b. Let calleeEnv be the LexicalEnvironment of calleeContext.
+ c. Let env be NewDeclarativeEnvironment(calleeEnv).
+ d. Let envRec be env's EnvironmentRecord.
+ [...]
+flags: [noStrict]
+---*/
+
+var x = 'outside';
+var probe1, probe2;
+
+function f(
+ _ = probe1 = function() { return x; },
+ __ = (eval('var x = "inside";'), probe2 = function() { return x; })
+ ) {
+}
+f();
+
+assert.sameValue(probe1(), 'inside');
+assert.sameValue(probe2(), 'inside');
+
+reportCompare(0, 0);