Fix regression in regexp-caching.html

test/mjsunit/regexp-static.js

Index: test/mjsunit/regexp-static.js
===================================================================
--- test/mjsunit/regexp-static.js	(revision 1389)
+++ test/mjsunit/regexp-static.js	(working copy)
@@ -132,3 +132,8 @@
 re = /(.)/g;
 function f() { return RegExp.$1; };
 assertEquals('abcd', 'abcd'.replace(re, f));
+
+RegExp.multiline = "foo";
+assertTrue(typeof RegExp.multiline == typeof Boolean(), "RegExp.multiline coerces values to booleans");
+RegExp.input = Number();
+assertTrue(typeof RegExp.input == typeof String(), "RegExp.input coerces values to booleans");