Drop computed handler count and index from AST.

test/mjsunit/regress/regress-crbug-493290.js

Index: test/mjsunit/regress/regress-crbug-493290.js
diff --git a/test/mjsunit/compiler/regress-416359.js b/test/mjsunit/regress/regress-crbug-493290.js
similarity index 84%
copy from test/mjsunit/compiler/regress-416359.js
copy to test/mjsunit/regress/regress-crbug-493290.js
index 18cdc5e72800ab16c49ea2f2091b88ba1c873248..6ff9fe1a656bd7ffaa19325820ef1d794a52cc4d 100644
--- a/test/mjsunit/compiler/regress-416359.js
+++ b/test/mjsunit/regress/regress-crbug-493290.js
@@ -2,9 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-"use strict"
 function f() {
-  for (x in {a:0});
+  throw "boom";
+  try {} catch (e) {}
 }
-
 assertThrows(f);