ART: Refactor for bugprone-argument-comment

Handles compiler.

Bug: 116054210
Test: WITH_TIDY=1 mmma art
Change-Id: I5cdfe73c31ac39144838a2736146b71de037425e
diff --git a/compiler/optimizing/constant_folding_test.cc b/compiler/optimizing/constant_folding_test.cc
index b1436f8..74d9d3a 100644
--- a/compiler/optimizing/constant_folding_test.cc
+++ b/compiler/optimizing/constant_folding_test.cc
@@ -70,7 +70,7 @@
 
     check_after_cf(graph_);
 
-    HDeadCodeElimination(graph_, nullptr /* stats */, "dead_code_elimination").Run();
+    HDeadCodeElimination(graph_, /* stats= */ nullptr, "dead_code_elimination").Run();
     GraphChecker graph_checker_dce(graph_);
     graph_checker_dce.Run();
     ASSERT_TRUE(graph_checker_dce.IsValid());