[turbofan] Remove special JSForInStep and JSForInDone.

src/ast/ast.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_AST_AST_H_
 #define V8_AST_AST_H_
 
 #include "src/ast/ast-value-factory.h"
 #include "src/ast/modules.h"
 #include "src/ast/variables.h"
@@ skipping 700 matching lines @@
   FeedbackVectorSlot EachFeedbackSlot() const { return each_slot_; }
   FeedbackVectorSlot ForInFeedbackSlot() {
     DCHECK(!for_in_feedback_slot_.IsInvalid());
     return for_in_feedback_slot_;
   }
 
   enum ForInType { FAST_FOR_IN, SLOW_FOR_IN };
   ForInType for_in_type() const { return for_in_type_; }
   void set_for_in_type(ForInType type) { for_in_type_ = type; }
 
-  static int num_ids() { return parent_num_ids() + 6; }
+  static int num_ids() { return parent_num_ids() + 7; }
   BailoutId BodyId() const { return BailoutId(local_id(0)); }
   BailoutId EnumId() const { return BailoutId(local_id(1)); }
   BailoutId ToObjectId() const { return BailoutId(local_id(2)); }
   BailoutId PrepareId() const { return BailoutId(local_id(3)); }
   BailoutId FilterId() const { return BailoutId(local_id(4)); }
   BailoutId AssignmentId() const { return BailoutId(local_id(5)); }
+  BailoutId IncrementId() const { return BailoutId(local_id(6)); }
   BailoutId ContinueId() const { return EntryId(); }
   BailoutId StackCheckId() const { return BodyId(); }
 
  private:
   friend class AstNodeFactory;
 
   ForInStatement(ZoneList<const AstRawString*>* labels, int pos)
       : ForEachStatement(labels, pos, kForInStatement),
         each_(nullptr),
         subject_(nullptr),
@@ skipping 2712 matching lines @@
                                     : NULL;                                   \
   }
 AST_NODE_LIST(DECLARE_NODE_FUNCTIONS)
 #undef DECLARE_NODE_FUNCTIONS
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_AST_AST_H_