Implement $ for non-multiline.

src/assembler-irregexp.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 85 matching lines @@
   void CheckCharacterLT(uc16 limit, Label* on_less);
   void CheckCharacterGT(uc16 limit, Label* on_greater);
 
   // Checks current position for a match against a previous capture.  Advances
   // current position by the length of the capture iff it matches.  The capture
   // is stored in a given register and the register after.  If a register
   // contains -1 then the other register must always contain -1 and the
   // on_mismatch label will never be called.
   void CheckNotBackReference(int capture_index, Label* on_mismatch);
   void CheckNotBackReferenceNoCase(int capture_index, Label* on_mismatch);
+  void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal);
 
   // Checks a register for strictly-less-than or greater-than-or-equal.
   void CheckRegisterLT(int reg_index, uint16_t vs, Label* on_less_than);
   void CheckRegisterGE(int reg_index, uint16_t vs, Label* on_greater_equal);
 
   // Subtracts a 16 bit value from the current character, uses the result to
   // look up in a bit array, uses the result of that to decide whether to fall
   // though (on 1) or jump to the on_zero label (on 0).
   void LookupMap1(uc16 start, Label* bit_map, Label* on_zero);
 
@@ skipping 38 matching lines @@
   // True if the assembler owns the buffer, false if buffer is external.
   bool own_buffer_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IrregexpAssembler);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_IRREGEXP_H_