Move remaining Message functions to C++

src/js/messages.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // -------------------------------------------------------------------
 
 (function(global, utils) {
 
 %CheckIsBootstrapping();
 
@@ skipping 55 matching lines @@
     "source_url",
     "source_mapping_url",
     "line_offset",
     "column_offset"
   ], [
     "locationFromPosition", ScriptLocationFromPosition,
     "nameOrSourceURL", ScriptNameOrSourceURL,
   ]
 );
 
-// -------------------------------------------------------------------
-// Message
-
-function GetLineNumber(message) {
-  var start_position = %MessageGetStartPosition(message);
-  if (start_position == -1) return kNoLineNumberInfo;
-  var script = %MessageGetScript(message);
-  var location = script.locationFromPosition(start_position, true);
-  if (location == null) return kNoLineNumberInfo;
-  return location.line + 1;
-}
-
-
-//Returns the offset of the given position within the containing line.
-function GetColumnNumber(message) {
-  var script = %MessageGetScript(message);
-  var start_position = %MessageGetStartPosition(message);
-  var location = script.locationFromPosition(start_position, true);
-  if (location == null) return -1;
-  return location.column;
-}
-
-
-// Returns the source code line containing the given source
-// position, or the empty string if the position is invalid.
-function GetSourceLine(message) {
-  var script = %MessageGetScript(message);
-  var start_position = %MessageGetStartPosition(message);
-  var location = script.locationFromPosition(start_position, true);
-  if (location == null) return "";
-  return location.sourceText;
-}
-
-%InstallToContext([
-  "message_get_column_number", GetColumnNumber,
-  "message_get_line_number", GetLineNumber,
-  "message_get_source_line", GetSourceLine,
-]);
-
 });