Use finite-length end-anchored regexps to reduce part of regexp that is searched.

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

Index: src/arm/regexp-macro-assembler-arm.h
diff --git a/src/arm/regexp-macro-assembler-arm.h b/src/arm/regexp-macro-assembler-arm.h
index 93a74d7ca4af17d4cf10889f63a368fdb1431e42..4e09f671c194aa41910ca1e03b2b8f772b52053a 100644
--- a/src/arm/regexp-macro-assembler-arm.h
+++ b/src/arm/regexp-macro-assembler-arm.h
@@ -100,6 +100,7 @@ class RegExpMacroAssemblerARM: public NativeRegExpMacroAssembler {
                             StackCheckFlag check_stack_limit);
   virtual void ReadCurrentPositionFromRegister(int reg);
   virtual void ReadStackPointerFromRegister(int reg);
+  virtual void SetCurrentPositionFromEnd(int by);
   virtual void SetRegister(int register_index, int to);
   virtual void Succeed();
   virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);