[inspector] [wasm] Implement GetPossibleBreakpoints

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 360 matching lines @@
     m_debugger->removeBreakpoint(debuggerBreakpointId);
     m_serverBreakpoints.erase(debuggerBreakpointId);
   }
   m_breakpointIdToDebuggerBreakpointIds.erase(breakpointId);
 }
 
 Response V8DebuggerAgentImpl::getPossibleBreakpoints(
     std::unique_ptr<protocol::Debugger::Location> start,
     Maybe<protocol::Debugger::Location> end,
     std::unique_ptr<protocol::Array<protocol::Debugger::Location>>* locations) {
+  v8::HandleScope handles(m_isolate);
   String16 scriptId = start->getScriptId();
 
   if (start->getLineNumber() < 0 || start->getColumnNumber(0) < 0)
     return Response::Error(
         "start.lineNumber and start.columnNumber should be >= 0");
 
   v8::DebugInterface::Location v8Start(start->getLineNumber(),
                                        start->getColumnNumber(0));
   v8::DebugInterface::Location v8End;
   if (end.isJust()) {
@@ skipping 872 matching lines @@
 
 void V8DebuggerAgentImpl::reset() {
   if (!enabled()) return;
   m_scheduledDebuggerStep = NoStep;
   m_scripts.clear();
   m_blackboxedPositions.clear();
   m_breakpointIdToDebuggerBreakpointIds.clear();
 }
 
 }  // namespace v8_inspector