Optimizing: Clean up after HRor.

Change-Id: I96bd7fa2e8bdccb87a3380d063dad0dd57fed9d7
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index a941935..9fda838 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -3363,15 +3363,16 @@
     }
     default:
       LOG(FATAL) << "Unexpected operation type " << type;
+      UNREACHABLE();
   }
 }
 
 void LocationsBuilderARM::VisitRor(HRor* op) {
-    HandleRotate(op);
+  HandleRotate(op);
 }
 
 void InstructionCodeGeneratorARM::VisitRor(HRor* op) {
-    HandleRotate(op);
+  HandleRotate(op);
 }
 
 void LocationsBuilderARM::HandleShift(HBinaryOperation* op) {