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

src/compiler.cc

 // Copyright 2012 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/compiler.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "src/asmjs/asm-js.h"
@@ skipping 1302 matching lines @@
 }
 
 MaybeHandle<JSArray> Compiler::CompileForLiveEdit(Handle<Script> script) {
   Isolate* isolate = script->GetIsolate();
   DCHECK(AllowCompilation::IsAllowed(isolate));
 
   // In order to ensure that live edit function info collection finds the newly
   // generated shared function infos, clear the script's list temporarily
   // and restore it at the end of this method.
   Handle<Object> old_function_infos(script->shared_function_infos(), isolate);
-  script->set_shared_function_infos(Smi::FromInt(0));
+  script->set_shared_function_infos(Smi::kZero);
 
   // Start a compilation.
   Zone zone(isolate->allocator());
   ParseInfo parse_info(&zone, script);
   CompilationInfo info(&parse_info, Handle<JSFunction>::null());
   info.MarkAsDebug();
 
   // TODO(635): support extensions.
   const bool compilation_succeeded = !CompileToplevel(&info).is_null();
   Handle<JSArray> infos;
@@ skipping 554 matching lines @@
     DCHECK(shared->is_compiled());
     function->set_literals(cached.literals);
   } else if (shared->is_compiled()) {
     // TODO(mvstanton): pass pretenure flag to EnsureLiterals.
     JSFunction::EnsureLiterals(function);
   }
 }
 
 }  // namespace internal
 }  // namespace v8