Allow optimized code when debugger is active

runtime/vm/debugger.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_DEBUGGER_H_
 #define VM_DEBUGGER_H_
 
 #include "include/dart_debugger_api.h"
 
 #include "vm/object.h"
@@ skipping 218 matching lines @@
       Dart_Port isolate_id;
     };
   };
   typedef void EventHandler(DebuggerEvent *event);
 
   Debugger();
   ~Debugger();
 
   void Initialize(Isolate* isolate);
   void Shutdown();
-  bool IsActive();
 
   void NotifyCompilation(const Function& func);
 
   RawFunction* ResolveFunction(const Library& library,
                                const String& class_name,
                                const String& function_name);
 
   // Set breakpoint at closest location to function entry.
   SourceBreakpoint* SetBreakpointAtEntry(const Function& target_function);
   SourceBreakpoint* SetBreakpointAtLine(const String& script_url,
                                         intptr_t line_number);
 
   void RemoveBreakpoint(intptr_t bp_id);
   SourceBreakpoint* GetBreakpointById(intptr_t id);
 
   void SetStepOver() { resume_action_ = kStepOver; }
   void SetStepInto() { resume_action_ = kStepInto; }
   void SetStepOut() { resume_action_ = kStepOut; }
 
   void SetExceptionPauseInfo(Dart_ExceptionPauseInfo pause_info);
   Dart_ExceptionPauseInfo GetExceptionPauseInfo();
 
   void VisitObjectPointers(ObjectPointerVisitor* visitor);
 
   // Called from Runtime when a breakpoint in Dart code is reached.
   void BreakpointCallback();
 
+  // Returns true if there is at least one breakpoint set in func.
+  // Checks for both user-defined and internal temporary breakpoints.
+  bool HasBreakpoint(const Function& func);
+
   DebuggerStackTrace* StackTrace() const { return stack_trace_; }
 
   RawArray* GetInstanceFields(const Instance& obj);
   RawArray* GetStaticFields(const Class& cls);
   RawArray* GetLibraryFields(const Library& lib);
   RawArray* GetGlobalFields(const Library& lib);
 
   intptr_t CacheObject(const Object& obj);
   RawObject* GetCachedObject(intptr_t obj_id);
   bool IsValidObjectId(intptr_t obj_id);
@@ skipping 17 matching lines @@
   static void SignalIsolateEvent(EventType type);
 
  private:
   enum ResumeAction {
     kContinue,
     kStepOver,
     kStepInto,
     kStepOut
   };
 
-  void EnsureFunctionIsDeoptimized(const Function& func);
+  void DeoptimizeWorld();
   void InstrumentForStepping(const Function& target_function);
   SourceBreakpoint* SetBreakpoint(const Function& target_function,
                                   intptr_t first_token_pos,
                                   intptr_t last_token_pos);
   void RemoveInternalBreakpoints();
   void UnlinkCodeBreakpoints(SourceBreakpoint* src_bpt);
   void RegisterSourceBreakpoint(SourceBreakpoint* bpt);
   void RegisterCodeBreakpoint(CodeBreakpoint* bpt);
   SourceBreakpoint* GetSourceBreakpoint(const Function& func,
                                         intptr_t token_pos);
@@ skipping 54 matching lines @@
   static EventHandler* event_handler_;
 
   friend class SourceBreakpoint;
   DISALLOW_COPY_AND_ASSIGN(Debugger);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_DEBUGGER_H_