Ensure the debugger keeps a reference to code objects

runtime/vm/object.cc

 // 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 9845 matching lines @@
   // larger than the previously added one.
   for (intptr_t i = kSCallTableEntryLength;
       i < value.Length();
       i += kSCallTableEntryLength) {
     ASSERT(value.At(i - kSCallTableEntryLength) < value.At(i));
   }
 #endif  // DEBUG
 }
 
 
+bool Code::HasBreakpoint() const {
+  return Isolate::Current()->debugger()->HasBreakpoint(*this);
+}
+
+
 RawDeoptInfo* Code::GetDeoptInfoAtPc(uword pc, intptr_t* deopt_reason) const {
   ASSERT(is_optimized());
   const Instructions& instrs = Instructions::Handle(instructions());
   uword code_entry = instrs.EntryPoint();
   const Array& table = Array::Handle(deopt_info_array());
   ASSERT(!table.IsNull());
   // Linear search for the PC offset matching the target PC.
   intptr_t length = DeoptTable::GetLength(table);
   Smi& offset = Smi::Handle();
   Smi& reason = Smi::Handle();
@@ skipping 7217 matching lines @@
   return "_MirrorReference";
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   Instance::PrintToJSONStream(stream, ref);
 }
 
 
 }  // namespace dart