Deprecate old debugger breakpoint handler

runtime/include/dart_debugger_api.h

Index: runtime/include/dart_debugger_api.h
===================================================================
--- runtime/include/dart_debugger_api.h	(revision 21556)
+++ runtime/include/dart_debugger_api.h	(working copy)
@@ -25,6 +25,7 @@
  */
 #define ILLEGAL_ISOLATE_ID ILLEGAL_PORT
 
+// DEPRECATED -- use Dart_PausedEventHandler
 typedef void Dart_BreakpointHandler(Dart_IsolateId isolate_id,
                                     Dart_Breakpoint breakpoint,
                                     Dart_StackTrace stack_trace);
@@ -58,6 +59,10 @@
 typedef void Dart_IsolateEventHandler(Dart_IsolateId isolate_id,
                                       Dart_IsolateEvent kind);
 
+typedef void Dart_PausedEventHandler(Dart_IsolateId isolate_id,
+                                     const Dart_CodeLocation& location);
+
+
 /**
  * Caches a given \object and returns an object id. The object id is only
  * valid while the VM is paused. The cache is invalidated when the VM
@@ -276,6 +281,8 @@
 
 
 /**
+ * DEPRECATED -- use Dart_SetPausedEventHandler
+ *
  * Installs a handler callback function that gets called by the VM
  * when a breakpoint has been reached.
  *
@@ -284,7 +291,18 @@
 DART_EXPORT void Dart_SetBreakpointHandler(
                             Dart_BreakpointHandler bp_handler);
 
+
 /**
+ * Installs a handler callback function that gets called by the VM
+ * when a breakpoint location has been reached or when stepping.
+ *
+ * Requires there to be a current isolate.
+ */
+DART_EXPORT void Dart_SetPausedEventHandler(
+                            Dart_PausedEventHandler handler);
+
+
+/**
  * Installs a callback function that gets called by the VM when
  * a breakpoint has been resolved to an actual url and line number.
  *