Fix dev tool hotkets in RNTester

Summary:
This diff fixed hotkeys for dev tools like cmd+d, cmd+r, and cmd+i when Turbo Modules are enabled until we have a proper way to eagerly initialize turbo modules.

Changelog: [Internal]

Reviewed By: RSNara

Differential Revision: D21517482

fbshipit-source-id: 8c68bc126361aa961a4f05c93dc19ada32fe44c7

RNTester/RNTester/AppDelegate.mm

@@ -153,6 +153,15 @@ - (void)loadSourceForBridge:(RCTBridge *)bridge
   _turboModuleManager = [[RCTTurboModuleManager alloc] initWithBridge:bridge
                                                              delegate:self
                                                             jsInvoker:bridge.jsCallInvoker];
+
+#if RCT_DEV
+  /**
+   * Eagerly initialize RCTDevMenu so CMD + d, CMD + i, and CMD + r work.
+   * This is a stop gap until we have a system to eagerly init Turbo Modules.
+   */
+  [_turboModuleManager moduleForName:"RCTDevMenu"];
+#endif
+
   __weak __typeof(self) weakSelf = self;
   return std::make_unique<facebook::react::JSCExecutorFactory>([weakSelf, bridge](facebook::jsi::Runtime &runtime) {
     if (!bridge) {