Do not install fillers when right trimming large objects.

test/mjsunit/regress/regress-404981.js

Index: test/mjsunit/regress/regress-404981.js
diff --git a/test/mjsunit/regress/regress-349870.js b/test/mjsunit/regress/regress-404981.js
similarity index 72%
copy from test/mjsunit/regress/regress-349870.js
copy to test/mjsunit/regress/regress-404981.js
index 72df05524bf1ccbcc8e4201512238e6f99e3fdea..5508d6fea710c12b931621eabc9fd61e4ab28517 100644
--- a/test/mjsunit/regress/regress-349870.js
+++ b/test/mjsunit/regress/regress-404981.js
@@ -2,6 +2,5 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-var r = /x/;
-Object.freeze(r);
-r.compile("x");
+var large_object = new Array(5000001);
+large_object.length = 23;