gn: attach comments to parse tree

tools/gn/parse_tree_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/input_file.h"
 #include "tools/gn/parse_tree.h"
 #include "tools/gn/scope.h"
 #include "tools/gn/test_with_scope.h"
 
 TEST(ParseTree, Accessor) {
   TestWithScope setup;
 
   // Make a pretend parse node with proper tracking that we can blame for the
   // given value.
   InputFile input_file(SourceFile("//foo"));
-  Token base_token(Location(&input_file, 1, 1), Token::IDENTIFIER, "a");
-  Token member_token(Location(&input_file, 1, 1), Token::IDENTIFIER, "b");
+  Token base_token(Location(&input_file, 1, 1, 1), Token::IDENTIFIER, "a");
+  Token member_token(Location(&input_file, 1, 1, 1), Token::IDENTIFIER, "b");
 
   AccessorNode accessor;
   accessor.set_base(base_token);
 
   scoped_ptr<IdentifierNode> member_identifier(
       new IdentifierNode(member_token));
   accessor.set_member(member_identifier.Pass());
 
   // The access should fail because a is not defined.
   Err err;
@@ skipping 65 matching lines @@
 
   Err err;
   input.parsed()->Execute(setup.scope(), &err);
   EXPECT_TRUE(err.has_error());
 
   // The origin for the "not a string" error message should be where the value
   // was dereferenced (the "a" on the second line).
   EXPECT_EQ(2, err.location().line_number());
   EXPECT_EQ(20, err.location().char_offset());
 }