LiveEdit: update breakpoint positions for non-changed functions

src/debug-debugger.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 106 matching lines @@
 BreakPoint.prototype.func = function() {
   return this.func_;
 };
 
 
 BreakPoint.prototype.source_position = function() {
   return this.source_position_;
 };
 
 
+BreakPoint.prototype.updateSourcePosition = function(new_position, script) {
+  this.source_position_ = new_position;
+  // TODO(635): also update line and column.
+};
+
+
 BreakPoint.prototype.hit_count = function() {
   return this.hit_count_;
 };
 
 
 BreakPoint.prototype.active = function() {
   if (this.script_break_point()) {
     return this.script_break_point().active();
   }
   return this.active_;
@@ skipping 2006 matching lines @@
     case 'string':
     case 'number':
       json = value;
       break
 
     default:
       json = null;
   }
   return json;
 }