Summary:
NativeModule async method calls are queued up on the JS side, and flushed to C++ on every Native -> JS call. Before we execute the batch of async NativeModule method calls, we convert it (a JS object) from a `jsi::Value` to a `folly::dynamic` object in `JSIExecutor::callNativeModules`. Then, in `JsToNativeBridge::callNativeModules`, we convert this `folly::dynamic` object into an `std::vector<MethodCall>`, before finally looping over these `MethodCall`s and invoking each NativeModule async method call.
The markers I'm adding in this diff measure this `jsi::Value -> folly::dynamic -> std::vector<MethodCall>` pre-processing.
Changelog: [Internal]
Reviewed By: PeteTheHeat
Differential Revision: D21435455
fbshipit-source-id: 4c5a9e2b73c1a2a49d7a8f224a0d30afe3a0c79c
bf0e516086