Don't inline functions if they have an active breakpoint.

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 4492 matching lines @@
   set_kind_tag(AbstractBit::update(value, raw_ptr()->kind_tag_));
 }
 
 
 void Function::set_is_inlinable(bool value) const {
   set_kind_tag(InlinableBit::update(value, raw_ptr()->kind_tag_));
 }
 
 
 bool Function::IsInlineable() const {
-  return InlinableBit::decode(raw_ptr()->kind_tag_) && HasCode();
+  return (InlinableBit::decode(raw_ptr()->kind_tag_) &&
+          HasCode() &&
+          !Isolate::Current()->debugger()->HasBreakpoint(*this));
 }
 
 
 void Function::set_is_visible(bool value) const {
   set_kind_tag(VisibleBit::update(value, raw_ptr()->kind_tag_));
 }
 
 
 intptr_t Function::NumParameters() const {
   return num_fixed_parameters() + NumOptionalParameters();
@@ skipping 11062 matching lines @@
   return "_MirrorReference";
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   JSONObject jsobj(stream);
 }
 
 
 }  // namespace dart