`lint-ignore` processing for `clang-tidy` (fbcode addons) (#1472)

Summary:
Pull Request resolved: https://github.com/facebook/folly/pull/1472

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

Reviewed By: suo

Differential Revision: D24197524

fbshipit-source-id: e99cfe1a7440a275edd63643ad819ca9e2a07788

folly/test/TryTest.cpp

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