‘Yield* e' should not access e.current eagerly

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 "vm/flags.h"
 
 #ifndef DART_PRECOMPILED_RUNTIME
 
 #include "lib/invocation_mirror.h"
@@ skipping 9777 matching lines @@
 
     LocalVariable* iterator_param =
         LookupLocalScope(Symbols::IteratorParameter());
     ASSERT(iterator_param != NULL);
     // Generate :iterator.current = expr;
     AstNode* iterator =
         new(Z) LoadLocalNode(TokenPosition::kNoSource, iterator_param);
     AstNode* store_current =
         new(Z) InstanceSetterNode(TokenPosition::kNoSource,
                                   iterator,
-                                  String::ZoneHandle(Symbols::Current().raw()),
+                                  Library::PrivateCoreLibName(
+                                      Symbols::_current()),
                                   expr);
     yield->AddNode(store_current);
     if (is_yield_each) {
       // Generate :iterator.isYieldEach = true;
       AstNode* set_is_yield_each =
           new(Z) InstanceSetterNode(TokenPosition::kNoSource,
               iterator,
               String::ZoneHandle(Symbols::IsYieldEach().raw()),
               new(Z) LiteralNode(TokenPos(), Bool::True()));
       yield->AddNode(set_is_yield_each);
@@ skipping 4598 matching lines @@
     const ArgumentListNode& function_args,
     const LocalVariable* temp_for_last_arg,
     bool is_super_invocation) {
   UNREACHABLE();
   return NULL;
 }
 
 }  // namespace dart
 
 #endif  // DART_PRECOMPILED_RUNTIME