Make Failure inherit from MaybeObject instead of Object.

test/cctest/test-compiler.cc

Index: test/cctest/test-compiler.cc
===================================================================
--- test/cctest/test-compiler.cc	(revision 5696)
+++ test/cctest/test-compiler.cc	(working copy)
@@ -98,7 +98,7 @@
 }
 
 
-static Object* GetGlobalProperty(const char* name) {
+static MaybeObject* GetGlobalProperty(const char* name) {
   Handle<String> symbol = Factory::LookupAsciiSymbol(name);
   return Top::context()->global()->GetProperty(*symbol);
 }
@@ -140,7 +140,7 @@
   Handle<JSObject> global(Top::context()->global());
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(!has_pending_exception);
-  return GetGlobalProperty("result")->Number();
+  return GetGlobalProperty("result")->ToObjectChecked()->Number();
 }
 
 
@@ -161,7 +161,7 @@
   Handle<JSObject> global(Top::context()->global());
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(!has_pending_exception);
-  return GetGlobalProperty("result")->Number();
+  return GetGlobalProperty("result")->ToObjectChecked()->Number();
 }
 
 
@@ -181,7 +181,7 @@
   Handle<JSObject> global(Top::context()->global());
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(!has_pending_exception);
-  return GetGlobalProperty("result")->Number();
+  return GetGlobalProperty("result")->ToObjectChecked()->Number();
 }
 
 
@@ -202,7 +202,7 @@
   Handle<JSObject> global(Top::context()->global());
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(!has_pending_exception);
-  return GetGlobalProperty("result")->Number();
+  return GetGlobalProperty("result")->ToObjectChecked()->Number();
 }
 
 
@@ -256,7 +256,7 @@
   Handle<JSObject> global(Top::context()->global());
   Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(!has_pending_exception);
-  CHECK_EQ(511.0, GetGlobalProperty("r")->Number());
+  CHECK_EQ(511.0, GetGlobalProperty("r")->ToObjectChecked()->Number());
 }
 
 
@@ -272,7 +272,7 @@
   Handle<Object> result =
       Execution::Call(fun, global, 0, NULL, &has_pending_exception);
   CHECK(has_pending_exception);
-  CHECK_EQ(42.0, Top::pending_exception()->Number());
+  CHECK_EQ(42.0, Top::pending_exception()->ToObjectChecked()->Number());
 }
 
 
@@ -297,10 +297,10 @@
   Execution::Call(fun0, global, 0, NULL, &has_pending_exception);
   CHECK(!has_pending_exception);
 
-  Handle<Object> fun1 =
-      Handle<Object>(
-          Top::context()->global()->GetProperty(
-              *Factory::LookupAsciiSymbol("foo")));
+  Object* foo_symbol = Factory::LookupAsciiSymbol("foo")->ToObjectChecked();
+  MaybeObject* fun1_object =
+      Top::context()->global()->GetProperty(String::cast(foo_symbol));
+  Handle<Object> fun1(fun1_object->ToObjectChecked());
   CHECK(fun1->IsJSFunction());
 
   Object** argv[1] = {