ART: Refactor for bugprone-argument-comment

Handles compiler.

Bug: 116054210
Test: WITH_TIDY=1 mmma art
Change-Id: I5cdfe73c31ac39144838a2736146b71de037425e
diff --git a/compiler/optimizing/loop_optimization_test.cc b/compiler/optimizing/loop_optimization_test.cc
index c7cc661..310d98b 100644
--- a/compiler/optimizing/loop_optimization_test.cc
+++ b/compiler/optimizing/loop_optimization_test.cc
@@ -30,7 +30,7 @@
       : graph_(CreateGraph()),
         iva_(new (GetAllocator()) HInductionVarAnalysis(graph_)),
         loop_opt_(new (GetAllocator()) HLoopOptimization(
-            graph_, /* compiler_options */ nullptr, iva_, /* stats */ nullptr)) {
+            graph_, /* compiler_options= */ nullptr, iva_, /* stats= */ nullptr)) {
     BuildGraph();
   }