Fix the default template when RCT_NEW_ARCH_ENABLE=1 (facebook#32775)

Summary:
Pull Request resolved: facebook#32775

Changelog: [Internal] Fix build issues for the new app template with the new architecture enabled

Reviewed By: philIip

Differential Revision: D33157325

fbshipit-source-id: ee63f38fbfc088ca193dfa1b48f4b6611257b787

Author: sota000

React-Core.podspec

@@ -47,7 +47,7 @@ Pod::Spec.new do |s|
   s.compiler_flags         = folly_compiler_flags + ' ' + boost_compiler_flags
   s.header_dir             = "React"
   s.framework              = "JavaScriptCore"
-  s.pod_target_xcconfig    = { "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)/ReactCommon\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/DoubleConversion\" \"$(PODS_ROOT)/RCT-Folly\" \"${PODS_ROOT}/Headers/Public/React-hermes\" \"${PODS_ROOT}/Headers/Public/hermes-engine\" \"${PODS_ROOT}/Headers/Public/FlipperKit\" \"$(PODS_ROOT)/Headers/Public/ReactCommon\"", "DEFINES_MODULE" => "YES" }
+  s.pod_target_xcconfig    = { "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)/ReactCommon\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/DoubleConversion\" \"$(PODS_ROOT)/RCT-Folly\" \"${PODS_ROOT}/Headers/Public/React-hermes\" \"${PODS_ROOT}/Headers/Public/hermes-engine\" \"${PODS_ROOT}/Headers/Public/FlipperKit\" \"$(PODS_ROOT)/Headers/Public/ReactCommon\" \"$(PODS_ROOT)/Headers/Public/React-RCTFabric\"", "DEFINES_MODULE" => "YES" }
   s.user_target_xcconfig   = { "HEADER_SEARCH_PATHS" => "\"$(PODS_ROOT)/Headers/Private/React-Core\""}
   s.default_subspec        = "Default"
 

React/AppSetup/RCTAppSetupUtils.h

@@ -33,11 +33,12 @@ RCT_EXTERN_C_BEGIN
 void RCTAppSetupPrepareApp(UIApplication *application);
 UIView *RCTAppSetupDefaultRootView(RCTBridge *bridge, NSString *moduleName, NSDictionary *initialProperties);
 
+RCT_EXTERN_C_END
+
 #if RCT_NEW_ARCH_ENABLED
-id<RCTTurboModule> RCTAppSetupDefaultModuleFromClass(Class moduleClass);
-std::unique_ptr<facebook::react::JSExecutorFactory> RCTAppSetupDefaultJsexecutorFactory(
+RCT_EXTERN id<RCTTurboModule> RCTAppSetupDefaultModuleFromClass(Class moduleClass);
+
+std::unique_ptr<facebook::react::JSExecutorFactory> RCTAppSetupDefaultJsExecutorFactory(
     RCTBridge *bridge,
     RCTTurboModuleManager *turboModuleManager);
 #endif
-
-RCT_EXTERN_C_END