[promises] Refactor debug code

src/factory.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/factory.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/ast/ast.h"
 #include "src/base/bits.h"
@@ skipping 995 matching lines @@
 
 Handle<Struct> Factory::NewStruct(InstanceType type) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateStruct(type),
       Struct);
 }
 
 Handle<PromiseResolveThenableJobInfo> Factory::NewPromiseResolveThenableJobInfo(
     Handle<JSReceiver> thenable, Handle<JSReceiver> then,
-    Handle<JSFunction> resolve, Handle<JSFunction> reject,
-    Handle<Object> debug_id, Handle<Object> debug_name,
-    Handle<Context> context) {
+    Handle<JSFunction> resolve, Handle<JSFunction> reject, int debug_id,
+    int debug_name, Handle<Context> context) {
   Handle<PromiseResolveThenableJobInfo> result =
       Handle<PromiseResolveThenableJobInfo>::cast(
           NewStruct(PROMISE_RESOLVE_THENABLE_JOB_INFO_TYPE));
   result->set_thenable(*thenable);
   result->set_then(*then);
   result->set_resolve(*resolve);
   result->set_reject(*reject);
-  result->set_debug_id(*debug_id);
-  result->set_debug_name(*debug_name);
+  result->set_debug_id(debug_id);
+  result->set_debug_name(debug_name);
   result->set_context(*context);
   return result;
 }
 
 Handle<PromiseReactionJobInfo> Factory::NewPromiseReactionJobInfo(
     Handle<JSPromise> promise, Handle<Object> value, Handle<Object> tasks,
     Handle<Object> deferred_promise, Handle<Object> deferred_on_resolve,
     Handle<Object> deferred_on_reject, Handle<Context> context) {
   Handle<PromiseReactionJobInfo> result = Handle<PromiseReactionJobInfo>::cast(
       NewStruct(PROMISE_REACTION_JOB_INFO_TYPE));
   result->set_promise(*promise);
   result->set_value(*value);
   result->set_tasks(*tasks);
   result->set_deferred_promise(*deferred_promise);
   result->set_deferred_on_resolve(*deferred_on_resolve);
   result->set_deferred_on_reject(*deferred_on_reject);
-  result->set_debug_id(isolate()->heap()->undefined_value());
-  result->set_debug_name(isolate()->heap()->undefined_value());
+  result->set_debug_id(kDebugPromiseFirstID);
+  result->set_debug_name(kDebugNotActive);
   result->set_context(*context);
   return result;
 }
 
 Handle<AliasedArgumentsEntry> Factory::NewAliasedArgumentsEntry(
     int aliased_context_slot) {
   Handle<AliasedArgumentsEntry> entry = Handle<AliasedArgumentsEntry>::cast(
       NewStruct(ALIASED_ARGUMENTS_ENTRY_TYPE));
   entry->set_aliased_context_slot(aliased_context_slot);
   return entry;
@@ skipping 1727 matching lines @@
     Handle<AccessorInfo> prototype =
         Accessors::FunctionPrototypeInfo(isolate(), rw_attribs);
     Descriptor d = Descriptor::AccessorConstant(
         Handle<Name>(Name::cast(prototype->name())), prototype, rw_attribs);
     map->AppendDescriptor(&d);
   }
 }
 
 }  // namespace internal
 }  // namespace v8