Remove some dead code.

src/parser.h

-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
@@ skipping 636 matching lines @@
   // Parser support
   VariableProxy* Declare(Handle<String> name, Variable::Mode mode,
                          FunctionLiteral* fun,
                          bool resolve,
                          bool* ok);
 
   bool TargetStackContainsLabel(Handle<String> label);
   BreakableStatement* LookupBreakTarget(Handle<String> label, bool* ok);
   IterationStatement* LookupContinueTarget(Handle<String> label, bool* ok);
 
-  void RegisterTargetUse(BreakTarget* target, Target* stop);
+  void RegisterTargetUse(Label* target, Target* stop);
 
   // Factory methods.
 
   Statement* EmptyStatement() {
     static v8::internal::EmptyStatement empty;
     return &empty;
   }
 
   Scope* NewScope(Scope* parent, Scope::Type type, bool inside_with);
 
@@ skipping 145 matching lines @@
   // Converts the currently parsed literal to a JavaScript String.
   Handle<String> GetString();
 
   Isolate* isolate_;
   JsonScanner scanner_;
   bool stack_overflow_;
 };
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_