[inspector] store creation stack in current V8StackTraceImpl

src/inspector/v8-debugger-agent-impl.cc

 // Copyright 2015 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/inspector/v8-debugger-agent-impl.h"
 
 #include <algorithm>
 
 #include "src/debug/debug-interface.h"
 #include "src/inspector/injected-script.h"
@@ skipping 1012 matching lines @@
   protocol::ErrorSupport errorSupport;
   *result = Array<CallFrame>::fromValue(protocolValue.get(), &errorSupport);
   if (!*result) return Response::Error(errorSupport.errors());
   TranslateWasmStackTraceLocations(result->get(),
                                    m_debugger->wasmTranslation());
   return Response::OK();
 }
 
 std::unique_ptr<StackTrace> V8DebuggerAgentImpl::currentAsyncStackTrace() {
   if (!isPaused()) return nullptr;
-  V8StackTraceImpl* stackTrace = m_debugger->currentAsyncCallChain();
-  return stackTrace ? stackTrace->buildInspectorObjectForTail(m_debugger)
-                    : nullptr;
+  return V8StackTraceImpl::buildInspectorObjectForTail(m_debugger);
 }
 
 bool V8DebuggerAgentImpl::isPaused() const { return m_debugger->isPaused(); }
 
 void V8DebuggerAgentImpl::didParseSource(
     std::unique_ptr<V8DebuggerScript> script, bool success) {
   v8::HandleScope handles(m_isolate);
   String16 scriptSource = script->source();
   if (!success) script->setSourceURL(findSourceURL(scriptSource, false));
   if (!success)
@@ skipping 237 matching lines @@
 
 void V8DebuggerAgentImpl::reset() {
   if (!enabled()) return;
   m_blackboxedPositions.clear();
   resetBlackboxedStateCache();
   m_scripts.clear();
   m_breakpointIdToDebuggerBreakpointIds.clear();
 }
 
 }  // namespace v8_inspector