[regexp] implement case-insensitive unicode regexps.

src/regexp/arm64/regexp-macro-assembler-arm64.h

 // Copyright 2013 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_REGEXP_ARM64_REGEXP_MACRO_ASSEMBLER_ARM64_H_
 #define V8_REGEXP_ARM64_REGEXP_MACRO_ASSEMBLER_ARM64_H_
 
 #include "src/arm64/assembler-arm64.h"
 #include "src/macro-assembler.h"
 #include "src/regexp/regexp-macro-assembler.h"
@@ skipping 25 matching lines @@
                                int cp_offset,
                                Label* on_failure,
                                bool check_end_of_string);
   // A "greedy loop" is a loop that is both greedy and with a simple
   // body. It has a particularly simple implementation.
   virtual void CheckGreedyLoop(Label* on_tos_equals_current_position);
   virtual void CheckNotAtStart(int cp_offset, Label* on_not_at_start);
   virtual void CheckNotBackReference(int start_reg, bool read_backward,
                                      Label* on_no_match);
   virtual void CheckNotBackReferenceIgnoreCase(int start_reg,
-                                               bool read_backward,
+                                               bool read_backward, bool unicode,
                                                Label* on_no_match);
   virtual void CheckNotCharacter(unsigned c, Label* on_not_equal);
   virtual void CheckNotCharacterAfterAnd(unsigned c,
                                          unsigned mask,
                                          Label* on_not_equal);
   virtual void CheckNotCharacterAfterMinusAnd(uc16 c,
                                               uc16 minus,
                                               uc16 mask,
                                               Label* on_not_equal);
   virtual void CheckCharacterInRange(uc16 from,
@@ skipping 231 matching lines @@
   Label stack_overflow_label_;
 };
 
 #endif  // V8_INTERPRETED_REGEXP
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGEXP_ARM64_REGEXP_MACRO_ASSEMBLER_ARM64_H_