Fix misc-macro-parentheses warnings.

* Add parentheses to fix warnings.
* Use NOLINT to suppress wrong clang-tidy warnings.

Bug: 28705665
Change-Id: Icc8bc9b59583dee0ea17ab83e0ff0383b8599c3e
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index e010662..7ddd677 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -59,7 +59,8 @@
 
 static constexpr uint32_t kPackedSwitchCompareJumpThreshold = 7;
 
-#define __ down_cast<ArmAssembler*>(codegen->GetAssembler())->
+// NOLINT on __ macro to suppress wrong warning/fix from clang-tidy.
+#define __ down_cast<ArmAssembler*>(codegen->GetAssembler())-> // NOLINT
 #define QUICK_ENTRY_POINT(x) QUICK_ENTRYPOINT_OFFSET(kArmWordSize, x).Int32Value()
 
 class NullCheckSlowPathARM : public SlowPathCode {
@@ -674,7 +675,8 @@
 };
 
 #undef __
-#define __ down_cast<ArmAssembler*>(GetAssembler())->
+// NOLINT on __ macro to suppress wrong warning/fix from clang-tidy.
+#define __ down_cast<ArmAssembler*>(GetAssembler())-> // NOLINT
 
 inline Condition ARMCondition(IfCondition cond) {
   switch (cond) {