Fix issues 968 and 998

runtime/vm/parser.cc

 // Copyright (c) 2011, 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/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 2742 matching lines @@
     AddInterfaces(interfaces_pos, interface, interfaces);
   }
 
   // TODO(regis): Remove support for "factory" keyword.
   if ((CurrentToken() == Token::kDEFAULT) ||
       (CurrentToken() == Token::kFACTORY)) {
     if (CurrentToken() == Token::kFACTORY) {
       Warning("'factory' is obsolete, use 'default' instead.");
     }
     ConsumeToken();
+    if (CurrentToken() != Token::kIDENT) {
+      ErrorMsg("class name expected");
+    }
     const intptr_t factory_pos = token_index_;
     QualIdent factory_name;
     ParseQualIdent(&factory_name);
     if (factory_name.is_local_scope_ident) {
       ErrorMsg(factory_pos,
                "using '%s' in this context is invalid",
                factory_name.ident->ToCString());
     }
     String& qualifier = String::Handle();
     if (factory_name.qualifier != NULL) {
@@ skipping 4916 matching lines @@
 }
 
 
 void Parser::SkipNestedExpr() {
   const bool saved_mode = SetAllowFunctionLiterals(true);
   SkipExpr();
   SetAllowFunctionLiterals(saved_mode);
 }
 
 }  // namespace dart