Case independent back references.

src/regexp-macro-assembler-ia32.h

 // Copyright 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 35 matching lines @@
   virtual void Bind(Label* label);
   virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero);
   virtual void CheckCharacter(uc16 c, Label* on_equal);
   virtual void CheckCharacterGT(uc16 limit, Label* on_greater);
   virtual void CheckCharacterLT(uc16 limit, Label* on_less);
   virtual void CheckCharacters(Vector<const uc16> str,
                                int cp_offset,
                                Label* on_failure);
   virtual void CheckCurrentPosition(int register_index, Label* on_equal);
   virtual void CheckNotBackReference(int start_reg, Label* on_no_match);
+  virtual void CheckNotBackReferenceCaseIndependent(int start_reg,
+                                                    Label* on_no_match);
   virtual void CheckNotCharacter(uc16 c, Label* on_not_equal);
   virtual void CheckNotCharacterAfterOr(uc16 c, uc16 mask, Label* on_not_equal);
   virtual void CheckNotCharacterAfterMinusOr(uc16 c,
                                              uc16 mask,
                                              Label* on_not_equal);
   virtual void DispatchByteMap(uc16 start,
                                Label* byte_map,
                                const Vector<Label*>& destinations);
   virtual void DispatchHalfNibbleMap(uc16 start,
                                      Label* half_nibble_map,
@@ skipping 87 matching lines @@
   Label success_label_;
   Label exit_label_;
   // Handle used to represent the generated code object itself.
   Handle<Object> self_;
 };
 }}
 
 #endif  // !ARM
 
 #endif /* REGEXP_MACRO_ASSEMBLER_IA32_H_ */