Add stackTrace to Error object.

runtime/vm/parser.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/parser.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
@@ skipping 938 matching lines @@
         new LiteralNode(ident_pos, Object::transition_sentinel()));
     // Set field to null prior to throwing exception, so that subsequent
     // accesses to the field do not throw again, since initializers should only
     // be executed once.
     SequenceNode* report_circular = new SequenceNode(ident_pos, NULL);
     report_circular->Add(
         new StoreStaticFieldNode(
             ident_pos,
             field,
             new LiteralNode(ident_pos, Instance::ZoneHandle())));
-    // TODO(regis): Exception to throw is not specified by spec.
+    // TODO(regis, 5802): Exception to throw is not specified by spec.
     const String& circular_error = String::ZoneHandle(
         Symbols::New("circular dependency in field initialization"));
     report_circular->Add(
         new ThrowNode(ident_pos,
                       new LiteralNode(ident_pos, circular_error),
                       NULL));
     AstNode* circular_check =
         new IfNode(ident_pos, compare_circular, report_circular, NULL);
     current_block_->statements->Add(circular_check);
 
@@ skipping 8997 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart