Throw exception on invalid string length instead of OOM.

test/mjsunit/string-oom-slow-to-uppercase.js

Index: test/mjsunit/string-oom-slow-to-uppercase.js
diff --git a/test/mjsunit/regress/regress-store-global-proxy.js b/test/mjsunit/string-oom-slow-to-uppercase.js
similarity index 56%
copy from test/mjsunit/regress/regress-store-global-proxy.js
copy to test/mjsunit/string-oom-slow-to-uppercase.js
index c85531c5fd917daa67b54e87141a164b90f3729b..79f975bd0d400f979fc9d0722c2255bc814654b0 100644
--- a/test/mjsunit/regress/regress-store-global-proxy.js
+++ b/test/mjsunit/string-oom-slow-to-uppercase.js
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-delete Object.prototype.__proto__;
+var s = "\u00df";  // ß
+for (var i = 0; i < 27; i++) s += s;
 
-function f() {
-  this.toString = 1;
+function upper() {
+  s.toUpperCase();
 }
 
-f.apply({});
-f();
+assertThrows(upper, RangeError);