The order of evaluation in parseInt is wrong.

test/mjsunit/parse-int-float.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 82 matching lines @@
 }
 
 assertTrue(isNaN(parseInt(0/0)));
 assertTrue(isNaN(parseInt(1/0)), "parseInt Infinity");
 assertTrue(isNaN(parseInt(-1/0)), "parseInt -Infinity");
 
 assertTrue(isNaN(parseFloat(0/0)));
 assertEquals(Infinity, parseFloat(1/0), "parseFloat Infinity");
 assertEquals(-Infinity, parseFloat(-1/0), "parseFloat -Infinity");
 
+var state;
+var throwingRadix = { valueOf: function() { state = "throwingRadix"; throw null; } };
+var throwingString = { toString: function() { state = "throwingString"; throw null; } };
+state = null;
+try { parseInt('123', throwingRadix); } catch (e) {}
+assertEquals(state, "throwingRadix");
 
+state = null;
+try { parseInt(throwingString, 10); } catch (e) {}
+assertEquals(state, "throwingString");
+
+state = null;
+try { parseInt(throwingString, throwingRadix); } catch (e) {}
+assertEquals(state, "throwingString");