[fullcode] Restore context after calling ToNumber builtin.

test/mjsunit/regress/regress-crbug-628573.js

Index: test/mjsunit/regress/regress-crbug-628573.js
diff --git a/test/mjsunit/compiler/regress-621423.js b/test/mjsunit/regress/regress-crbug-628573.js
similarity index 53%
copy from test/mjsunit/compiler/regress-621423.js
copy to test/mjsunit/regress/regress-crbug-628573.js
index 962176ffbff75281ae55fed8a05fb40158f0d6f1..5ba184d9abaac0afb2da1ca8b7c4ca2a8c326d52 100644
--- a/test/mjsunit/compiler/regress-621423.js
+++ b/test/mjsunit/regress/regress-crbug-628573.js
@@ -4,18 +4,14 @@
 
 // Flags: --allow-natives-syntax
 
-var a = [0, ""];
-a[0] = 0;
+var z = {valueOf: function() { return 3; }};
 
-function g(array) {
-  array[1] = undefined;
-}
-
-function f() {
-  g(function() {});
-  g(a);
-}
-
-f();
-%OptimizeFunctionOnNextCall(f);
-f();
+(function() {
+  try {
+    var tmp = { x: 12 };
+    with (tmp) {
+      z++;
+    }
+    throw new Error("boom");
+  } catch(e) {}
+})();