Implement deletion of breakpoints

runtime/include/dart_debugger_api.h

 // Copyright (c) 2011, 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 INCLUDE_DART_DEBUGGER_API_H_
 #define INCLUDE_DART_DEBUGGER_API_H_
 
 #include "include/dart_api.h"
 
 typedef struct _Dart_Breakpoint* Dart_Breakpoint;
@@ skipping 37 matching lines @@
  * \return A handle to the True object if no error occurs.
  */
 DART_EXPORT Dart_Handle Dart_SetBreakpointAtEntry(
                             Dart_Handle library,
                             Dart_Handle class_name,
                             Dart_Handle function_name,
                             Dart_Breakpoint* breakpoint);
 
 
 /**
+ * Deletes the given \breakpoint.
+ *
+ * Requires there to be a current isolate.
+ *
+ * \return A handle to the True object if no error occurs.
+ */
+DART_EXPORT Dart_Handle Dart_DeleteBreakpoint(
+                            Dart_Breakpoint breakpoint);
+
+
+/**
  * Installs a handler callback function that gets called by the VM
  * when a breakpoint has been reached.
  *
  * Requires there to be a current isolate.
  */
 DART_EXPORT void Dart_SetBreakpointHandler(
                             Dart_BreakpointHandler bp_handler);
 
 
 /**
@@ skipping 38 matching lines @@
  * \return A handle to the True object if no error occurs.
  */
 DART_EXPORT Dart_Handle Dart_ActivationFrameInfo(
                             Dart_ActivationFrame activation_frame,
                             Dart_Handle* function_name,
                             Dart_Handle* script_url,
                             intptr_t* line_number);
 
 
 #endif  // INCLUDE_DART_DEBUGGER_API_H_