Ensure the debugger keeps a reference to code objects

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 3212 matching lines @@
   RawArray* ObjectPool() const {
     const Instructions& instr = Instructions::Handle(instructions());
     return instr.object_pool();
   }
   bool ContainsInstructionAt(uword addr) const {
     const Instructions& instr = Instructions::Handle(instructions());
     const uword offset = addr - instr.EntryPoint();
     return offset < static_cast<uword>(instr.size());
   }
 
+  // Returns true if there is a debugger breakpoint set in this code object.
+  bool HasBreakpoint() const;
+
   RawPcDescriptors* pc_descriptors() const {
     return raw_ptr()->pc_descriptors_;
   }
   void set_pc_descriptors(const PcDescriptors& descriptors) const {
     ASSERT(descriptors.IsOld());
     StorePointer(&raw_ptr()->pc_descriptors_, descriptors.raw());
   }
 
   // Array of DeoptInfo objects.
   RawArray* deopt_info_array() const {
@@ skipping 3389 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_