trace_events: fix abort when Node.js does not own the V8 platform

@@ -3381,7 +3381,8 @@ category. ### `ERR_TRACE_EVENTS_UNAVAILABLE`  The `node:trace_events` module could not be loaded because Node.js was compiled-with the `--without-v8-platform` flag.+with the `--without-v8-platform` flag, or because the process was initialized by+an embedder that provides its own V8 platform.  <a id="ERR_TRAILING_JUNK_AFTER_STREAM_END"></a> 

@@ -15,10 +15,14 @@ const { } = require('internal/errors').codes;  const { ownsProcessState } = require('internal/worker');-if (!hasTracing || !ownsProcessState)+const {+  CategorySet,+  getEnabledCategories,+  hasAgent,+} = internalBinding('trace_events');+if (!hasTracing || !ownsProcessState || !hasAgent())   throw new ERR_TRACE_EVENTS_UNAVAILABLE(); -const { CategorySet, getEnabledCategories } = internalBinding('trace_events'); const { customInspectSymbol } = require('internal/util'); const { format } = require('internal/util/inspect'); const {

@@ -113,6 +113,10 @@ void NodeCategorySet::Disable(const FunctionCallbackInfo<Value>& args) {   } } +static void HasAgent(const FunctionCallbackInfo<Value>& args) {+  args.GetReturnValue().Set(tracing::Agent::GetInstance() != nullptr);+}+ void GetEnabledCategories(const FunctionCallbackInfo<Value>& args) {   Environment* env = Environment::GetCurrent(args);   std::string categories =@@ -162,6 +166,7 @@ void NodeCategorySet::Initialize(Local<Object> target,   Environment* env = Environment::GetCurrent(context);   Isolate* isolate = env->isolate(); +  SetMethod(context, target, "hasAgent", HasAgent);   SetMethod(context, target, "getEnabledCategories", GetEnabledCategories);   SetMethod(context,             target,@@ -203,6 +208,7 @@ void NodeCategorySet::Initialize(Local<Object> target,  void NodeCategorySet::RegisterExternalReferences(     ExternalReferenceRegistry* registry) {+  registry->Register(HasAgent);   registry->Register(GetEnabledCategories);   registry->Register(SetTraceCategoryStateUpdateHandler);   registry->Register(GetCategoryEnabledBuffer);

@@ -0,0 +1,18 @@+'use strict';++// The embedtest binary runs on its own MultiIsolatePlatform without Node's+// tracing agent, so node:trace_events must report itself as unavailable.++const common = require('../common');+const { spawnSyncAndAssert } = require('../common/child_process');++spawnSyncAndAssert(+  common.resolveBuiltBinary('embedtest'),+  [+    'try { require("node:trace_events").createTracing({ categories: ["v8"] }); }' ++    'catch (e) { console.log(e.code); }',+  ],+  {+    trim: true,+    stdout: 'ERR_TRACE_EVENTS_UNAVAILABLE',+  });