Add translation of REV in ARM integrated assembler.

src/IceAssemblerARM32.h

Index: src/IceAssemblerARM32.h
diff --git a/src/IceAssemblerARM32.h b/src/IceAssemblerARM32.h
index 4cf87272aca01844ea280642a891ffec35f63aba..0dbff60651726a193515416843a116c8acc6a353 100644
--- a/src/IceAssemblerARM32.h
+++ b/src/IceAssemblerARM32.h
@@ -258,6 +258,8 @@ public:
   // Note: Registers is a bitset, where bit n corresponds to register Rn.
   void pushList(const IValueT Registers, CondARM32::Cond Cond);
 
+  void rev(const Operand *OpRd, const Operand *OpSrc, CondARM32::Cond Cond);
+
   void rsb(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
            bool SetFlags, CondARM32::Cond Cond);