`lint-ignore` processing for `clang-tidy` (xplat)

Summary: Disable CLANGTIDY checks for several places at the code where HOWTOEVEN checks are disabled.

Reviewed By: suo

Differential Revision: D24198276

fbshipit-source-id: c52cd10941252fcacfea30589660c57eb7099011

folly/test/TryTest.cpp

@@ -224,7 +224,7 @@ TEST(Try, tryEmplaceWithThrowingConstructor) {
   struct NonInheritingException {};
   struct ThrowingConstructor {
     [[noreturn]] ThrowingConstructor() noexcept(false) {
-      // @lint-ignore HOWTOEVEN CLANGTIDY
+      // @lint-ignore HOWTOEVEN CLANGTIDY CLANGTIDY
       throw NonInheritingException{};
     }