Preliminary code for block scopes and block contexts.

src/ast.h

 // 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
@@ skipping 341 matching lines @@
     return statements_[0]->StatementAsCountOperation();
   }
 
   virtual bool IsInlineable() const;
 
   void AddStatement(Statement* statement) { statements_.Add(statement); }
 
   ZoneList<Statement*>* statements() { return &statements_; }
   bool is_initializer_block() const { return is_initializer_block_; }
 
+  Scope* block_scope() const { return block_scope_; }
+  void set_block_scope(Scope* block_scope) { block_scope_ = block_scope; }
+
  private:
   ZoneList<Statement*> statements_;
   bool is_initializer_block_;
+  Scope* block_scope_;
 };
 
 
 class Declaration: public AstNode {
  public:
   Declaration(VariableProxy* proxy, Variable::Mode mode, FunctionLiteral* fun)
       : proxy_(proxy),
         mode_(mode),
         fun_(fun) {
     ASSERT(mode == Variable::VAR || mode == Variable::CONST);
@@ skipping 1861 matching lines @@
 
  private:
   Isolate* isolate_;
   bool stack_overflow_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_