TM iOS: Util to check if an id is TurboModule instance

Summary: Simple macro to do check if TurboModule is enabled and the particular object is RCTTurboModule compliant.

Reviewed By: PeteTheHeat

Differential Revision: D13978368

fbshipit-source-id: 660c7cab7bb074d80d57abead951dad19306ae73

ReactCommon/turbomodule/core/platform/ios/RCTTurboModule.h

@@ -15,6 +15,8 @@
 #import <jsireact/JSCallInvoker.h>
 #import <jsireact/TurboModule.h>
 
+#define RCT_IS_TURBO_MODULE_INSTANCE(module) ((RCTTurboModuleEnabled() && [[(module) class] conformsToProtocol:@protocol(RCTTurboModule)]))
+
 namespace facebook {
 namespace react {