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_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 56c5b06..cd04064 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -51,7 +51,8 @@
 
 static constexpr int kC2ConditionMask = 0x400;
 
-#define __ down_cast<X86_64Assembler*>(codegen->GetAssembler())->
+// NOLINT on __ macro to suppress wrong warning/fix from clang-tidy.
+#define __ down_cast<X86_64Assembler*>(codegen->GetAssembler())-> // NOLINT
 #define QUICK_ENTRY_POINT(x) QUICK_ENTRYPOINT_OFFSET(kX86_64WordSize, x).Int32Value()
 
 class NullCheckSlowPathX86_64 : public SlowPathCode {
@@ -710,7 +711,8 @@
 };
 
 #undef __
-#define __ down_cast<X86_64Assembler*>(GetAssembler())->
+// NOLINT on __ macro to suppress wrong warning/fix from clang-tidy.
+#define __ down_cast<X86_64Assembler*>(GetAssembler())-> // NOLINT
 
 inline Condition X86_64IntegerCondition(IfCondition cond) {
   switch (cond) {