Use function wrapper argument to expose internal arrays to native scripts.

src/regexp.js

Index: src/regexp.js
diff --git a/src/regexp.js b/src/regexp.js
index 3ac59872029eb8fe4c3dc90bcaa2891a52c55a32..b6bf3f983750b4a44f42ccec4cfebb2babca3cb0 100644
--- a/src/regexp.js
+++ b/src/regexp.js
@@ -13,7 +13,13 @@ var harmony_unicode_regexps = false;
 
 %CheckIsBootstrapping();
 
+// -------------------------------------------------------------------
+// Imports
+
 var GlobalRegExp = global.RegExp;
+var InternalPackedArray = shared.InternalPackedArray;
+
+// -------------------------------------------------------------------
 
 // Property of the builtins object for recording the result of the last
 // regexp match.  The property $regexpLastMatchInfo includes the matchIndices