Fix issue 265 by handling extra statement state on the frame based on...

src/ast.h

 // Copyright 2006-2008 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 184 matching lines @@
   // The labels associated with this statement. May be NULL;
   // if it is != NULL, guaranteed to contain at least one entry.
   ZoneStringList* labels() const { return labels_; }
 
   // Type testing & conversion.
   virtual BreakableStatement* AsBreakableStatement() { return this; }
 
   // Code generation
   BreakTarget* break_target() { return &break_target_; }
 
-  // Used during code generation for restoring the stack when a
-  // break/continue crosses a statement that keeps stuff on the stack.
-  int break_stack_height() { return break_stack_height_; }
-  void set_break_stack_height(int height) { break_stack_height_ = height; }
-
   // Testers.
   bool is_target_for_anonymous() const { return type_ == TARGET_FOR_ANONYMOUS; }
 
  protected:
   BreakableStatement(ZoneStringList* labels, Type type)
       : labels_(labels), type_(type) {
     ASSERT(labels == NULL || labels->length() > 0);
   }
 
  private:
   ZoneStringList* labels_;
   Type type_;
   BreakTarget break_target_;
-  int break_stack_height_;
 };
 
 
 class Block: public BreakableStatement {
  public:
   Block(ZoneStringList* labels, int capacity, bool is_initializer_block)
       : BreakableStatement(labels, TARGET_FOR_NAMED_ONLY),
         statements_(capacity),
         is_initializer_block_(is_initializer_block) { }
 
@@ skipping 210 matching lines @@
 class CaseClause: public ZoneObject {
  public:
   CaseClause(Expression* label, ZoneList<Statement*>* statements)
       : label_(label), statements_(statements) { }
 
   bool is_default() const  { return label_ == NULL; }
   Expression* label() const  {
     CHECK(!is_default());
     return label_;
   }
-  BreakTarget* body_target() { return &body_target_; }
+  JumpTarget* body_target() { return &body_target_; }
   ZoneList<Statement*>* statements() const  { return statements_; }
 
  private:
   Expression* label_;
-  BreakTarget body_target_;
+  JumpTarget body_target_;
   ZoneList<Statement*>* statements_;
 };
 
 
 class SwitchStatement: public BreakableStatement {
  public:
   explicit SwitchStatement(ZoneStringList* labels)
       : BreakableStatement(labels, TARGET_FOR_ANONYMOUS),
         tag_(NULL), cases_(NULL) { }
 
@@ skipping 1213 matching lines @@
 #undef DEF_VISIT
 
  private:
   bool stack_overflow_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_