1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/scope-meth-paramsbody-var-close.js b/js/src/tests/test262/language/statements/class/scope-meth-paramsbody-var-close.js
new file mode 100644
index 0000000000..e22e47f812
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/scope-meth-paramsbody-var-close.js
@@ -0,0 +1,39 @@
+// 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: >
+    Disposal of variable environment for the function body
+info: |
+    [...]
+    26. If hasParameterExpressions is false, then
+        [...]
+    27. Else,
+        a. NOTE A separate Environment Record is needed to ensure that closures
+           created by expressions in the formal parameter list do not have
+           visibility of declarations in the function body.
+        b. Let varEnv be NewDeclarativeEnvironment(env).
+        c. Let varEnvRec be varEnv's EnvironmentRecord.
+        d. Set the VariableEnvironment of calleeContext to varEnv.
+        e. Let instantiatedVarNames be a new empty List.
+        [...]
+---*/
+
+var probe;
+
+class C {
+  // A parameter expression is necessary to trigger the creation of the scope
+  // under test.
+  m(_ = null) {
+    var x = 'inside';
+    probe = function() { return x; };
+  }
+}
+C.prototype.m();
+
+var x = 'outside';
+
+assert.sameValue(probe(), 'inside');
+assert.sameValue(x, 'outside');
+
+reportCompare(0, 0);