Save actual break point location to script break point object.

src/debug.cc

Index: src/debug.cc
===================================================================
--- src/debug.cc	(revision 4865)
+++ src/debug.cc	(working copy)
@@ -1028,8 +1028,8 @@
 
 
 void Debug::SetBreakPoint(Handle<SharedFunctionInfo> shared,
-                          int source_position,
-                          Handle<Object> break_point_object) {
+                          Handle<Object> break_point_object,
+                          int* source_position) {
   HandleScope scope;
 
   if (!EnsureDebugInfo(shared)) {
@@ -1043,9 +1043,11 @@
 
   // Find the break point and change it.
   BreakLocationIterator it(debug_info, SOURCE_BREAK_LOCATIONS);
-  it.FindBreakLocationFromPosition(source_position);
+  it.FindBreakLocationFromPosition(*source_position);
   it.SetBreakPoint(break_point_object);
 
+  *source_position = it.position();
+
   // At least one active break point now.
   ASSERT(debug_info->GetBreakPointCount() > 0);
 }