ART: Refactor for bugprone-argument-comment

Handles compiler.

Bug: 116054210
Test: WITH_TIDY=1 mmma art
Change-Id: I5cdfe73c31ac39144838a2736146b71de037425e
diff --git a/compiler/optimizing/instruction_simplifier_arm64.cc b/compiler/optimizing/instruction_simplifier_arm64.cc
index b536cb4..e23decb 100644
--- a/compiler/optimizing/instruction_simplifier_arm64.cc
+++ b/compiler/optimizing/instruction_simplifier_arm64.cc
@@ -45,11 +45,11 @@
                                   HInstruction* bitfield_op,
                                   bool do_merge);
   bool CanMergeIntoShifterOperand(HInstruction* use, HInstruction* bitfield_op) {
-    return TryMergeIntoShifterOperand(use, bitfield_op, /* do_merge */ false);
+    return TryMergeIntoShifterOperand(use, bitfield_op, /* do_merge= */ false);
   }
   bool MergeIntoShifterOperand(HInstruction* use, HInstruction* bitfield_op) {
     DCHECK(CanMergeIntoShifterOperand(use, bitfield_op));
-    return TryMergeIntoShifterOperand(use, bitfield_op, /* do_merge */ true);
+    return TryMergeIntoShifterOperand(use, bitfield_op, /* do_merge= */ true);
   }
 
   /**