[destructuring] don't attempt to visit contents of FunctionLiterals

test/mjsunit/es6/regress/regress-594084.js

Index: test/mjsunit/es6/regress/regress-594084.js
diff --git a/test/mjsunit/regress/regress-4659.js b/test/mjsunit/es6/regress/regress-594084.js
similarity index 50%
copy from test/mjsunit/regress/regress-4659.js
copy to test/mjsunit/es6/regress/regress-594084.js
index ff436bec1b07d6a708ddd0a0c454ada3c353985c..4953cc9bb61cef55aaee15a8b6caa739c3416827 100644
--- a/test/mjsunit/regress/regress-4659.js
+++ b/test/mjsunit/es6/regress/regress-594084.js
@@ -2,11 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
-// Flags: --harmony-function-name
-
-var obj = {
-  get longerName(){
-    return 42;
+// Flags: --lazy --min-preparse-length=0
+(function() {
+  function CRASH(defaultParameter =
+      (function() { function functionDeclaration() { return 0; } }())) {
   }
-};
-assertEquals(42, obj.longerName);
+})();