Fix mismatched parenthesis error message

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
 
 #include "lib/invocation_mirror.h"
@@ skipping 1678 matching lines @@
         opening_token = token_stack.RemoveLast();
         opening_pos = token_pos_stack.RemoveLast();
         is_match = opening_token == Token::kLPAREN;
         break;
       case Token::kRBRACK:
         opening_token = token_stack.RemoveLast();
         opening_pos = token_pos_stack.RemoveLast();
         is_match = opening_token == Token::kLBRACK;
         break;
       case Token::kEOS:
+        opening_token = token_stack.RemoveLast();
+        opening_pos = token_pos_stack.RemoveLast();
         unexpected_token_found = true;
         break;
       default:
         // nothing.
         break;
     }
   } while (!token_stack.is_empty() && is_match && !unexpected_token_found);
   if (!is_match) {
     const Error& error = Error::Handle(
         LanguageError::NewFormatted(Error::Handle(),
@@ skipping 12741 matching lines @@
     const ArgumentListNode& function_args,
     const LocalVariable* temp_for_last_arg,
     bool is_super_invocation) {
   UNREACHABLE();
   return NULL;
 }
 
 }  // namespace dart
 
 #endif  // DART_PRECOMPILED