Add MVN (register, immediate) to ARM integrated assembler.

src/DartARM32/assembler_arm.h

Index: src/DartARM32/assembler_arm.h
diff --git a/src/DartARM32/assembler_arm.h b/src/DartARM32/assembler_arm.h
index 688104b1da9209e69706aa99c35149e8a10dc54f..de7d50e6bd8d979882ad1fc13896163219ccff08 100644
--- a/src/DartARM32/assembler_arm.h
+++ b/src/DartARM32/assembler_arm.h
@@ -507,10 +507,11 @@ class Assembler : public ValueObject {
   // Moved to ARM32::IceAssemblerARM32::bic()
   void bic(Register rd, Register rn, Operand o, Condition cond = AL);
   void bics(Register rd, Register rn, Operand o, Condition cond = AL);
-#endif
 
+  // Moved to ARM32::IceAssemblerARM32::mvn()
   void mvn(Register rd, Operand o, Condition cond = AL);
   void mvns(Register rd, Operand o, Condition cond = AL);
+#endif
 
   // Miscellaneous data-processing instructions.
   void clz(Register rd, Register rm, Condition cond = AL);