Introduce with scope and rework variable resolution.

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 1105 matching lines @@
 
   bool IsVariable(Handle<String> n) {
     return !is_this() && name().is_identical_to(n);
   }
 
   bool IsArguments() { return var_ != NULL && var_->is_arguments(); }
 
   Handle<String> name() const { return name_; }
   Variable* var() const { return var_; }
   bool is_this() const { return is_this_; }
-  bool inside_with() const { return inside_with_; }
   int position() const { return position_; }
 
   void MarkAsTrivial() { is_trivial_ = true; }
 
   // Bind this proxy to the variable var.
   void BindTo(Variable* var);
 
  protected:
   Handle<String> name_;
   Variable* var_;  // resolved variable, or NULL
   bool is_this_;
-  bool inside_with_;
   bool is_trivial_;
   int position_;
 
   VariableProxy(Isolate* isolate,
                 Handle<String> name,
                 bool is_this,
-                bool inside_with,
                 int position = RelocInfo::kNoPosition);
 
   friend class Scope;
 };
 
 
 class Property: public Expression {
  public:
   Property(Isolate* isolate,
            Expression* obj,
@@ skipping 984 matching lines @@
 
  private:
   Isolate* isolate_;
   bool stack_overflow_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_