Revert "Add Smi::Zero and replace all Smi::FromInt(0) calls"

src/bootstrapper.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/ieee754.h"
 #include "src/code-stubs.h"
@@ skipping 1300 matching lines @@
     number_fun->shared()->DontAdaptArguments();
     number_fun->shared()->SetConstructStub(
         *isolate->builtins()->NumberConstructor_ConstructStub());
     number_fun->shared()->set_length(1);
     InstallWithIntrinsicDefaultProto(isolate, number_fun,
                                      Context::NUMBER_FUNCTION_INDEX);
 
     // Create the %NumberPrototype%
     Handle<JSValue> prototype =
         Handle<JSValue>::cast(factory->NewJSObject(number_fun, TENURED));
-    prototype->set_value(Smi::kZero);
+    prototype->set_value(Smi::FromInt(0));
     Accessors::FunctionSetPrototype(number_fun, prototype).Assert();
 
     // Install the "constructor" property on the {prototype}.
     JSObject::AddProperty(prototype, factory->constructor_string(), number_fun,
                           DONT_ENUM);
 
     // Install the Number.prototype methods.
     SimpleInstallFunction(prototype, "toExponential",
                           Builtins::kNumberPrototypeToExponential, 1, false);
     SimpleInstallFunction(prototype, "toFixed",
@@ skipping 2876 matching lines @@
     if (!InstallNatives(context_type)) return;
 
     MakeFunctionInstancePrototypeWritable();
 
     if (!InstallExtraNatives()) return;
     if (!ConfigureGlobalObjects(global_proxy_template)) return;
 
     isolate->counters()->contexts_created_from_scratch()->Increment();
     // Re-initialize the counter because it got incremented during snapshot
     // creation.
-    isolate->native_context()->set_errors_thrown(Smi::kZero);
+    isolate->native_context()->set_errors_thrown(Smi::FromInt(0));
   }
 
   // Install experimental natives. Do not include them into the
   // snapshot as we should be able to turn them off at runtime. Re-installing
   // them after they have already been deserialized would also fail.
   if (context_type == FULL_CONTEXT) {
     if (!isolate->serializer_enabled()) {
       InitializeExperimentalGlobal();
       if (!InstallExperimentalNatives()) return;
 
@@ skipping 103 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8