Delete TurboModule interop layer (probe diff, do not land)

Summary:
Deletes the iOS TurboModule interop layer outright as a probe to surface every remaining iOS-side dependent module and component. The interop layer is the shim that exposes legacy `RCTBridgeModule` instances to the new-arch TurboModule registry; with the legacy architecture being removed from React Native, every consumer of this shim needs to be migrated to a real TurboModule before the legacy arch can be deleted.

This change is intentionally not safe to land. It is meant to be built locally so that the resulting compile errors enumerate the iOS modules and components that still need to be migrated.

The Android-side interop layer (`JavaInteropTurboModule.{h,cpp}`, `TurboModuleInteropUtils.kt`, `InteropModuleRegistry.kt`, and its test) is intentionally retained in this iteration — Android migration is being tracked separately.

iOS files removed:
- `ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTInteropTurboModule.h`
- `ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTInteropTurboModule.mm`

LegacyViewManager view interop, fabric UIBlock interop, and InteropEventEmitter are out of scope for this probe and remain in place.

Changelog: [Internal][General]Delete TurboModule interop layer

Differential Revision: D106109160

Author: christophpurrer

packages/react-native/ReactAndroid/src/main/jni/react/turbomodule/ReactCommon/TurboModuleManager.cpp

@@ -24,6 +24,7 @@
 
 namespace facebook::react {
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
 namespace {
 
 class JMethodDescriptor : public jni::JavaClass<JMethodDescriptor> {
@@ -93,6 +94,7 @@ class JMethodDescriptor : public jni::JavaClass<JMethodDescriptor> {
   }
 };
 } // namespace
+#endif // RCT_REMOVE_LEGACY_INTEROP
 
 TurboModuleManager::TurboModuleManager(
     std::shared_ptr<CallInvoker> jsCallInvoker,
@@ -222,6 +224,7 @@ std::shared_ptr<TurboModule> TurboModuleManager::getTurboModule(
   return nullptr;
 }
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
 TurboModuleProviderFunctionTypeWithRuntime
 TurboModuleManager::createLegacyModuleProvider(
     jni::alias_ref<jhybridobject> javaPart) {
@@ -318,14 +321,19 @@ std::shared_ptr<TurboModule> TurboModuleManager::getLegacyModule(
 
   return nullptr;
 }
+#endif // RCT_REMOVE_LEGACY_INTEROP
 
 void TurboModuleManager::installJSBindings(
     jsi::Runtime& runtime,
     jni::alias_ref<jhybridobject> javaPart) {
+#ifndef RCT_REMOVE_LEGACY_INTEROP
   TurboModuleBinding::install(
       runtime,
       createTurboModuleProvider(javaPart),
       createLegacyModuleProvider(javaPart));
+#else
+  TurboModuleBinding::install(runtime, createTurboModuleProvider(javaPart));
+#endif // RCT_REMOVE_LEGACY_INTEROP
 }
 
 void TurboModuleManager::dispatchJSBindingInstall(

packages/react-native/ReactAndroid/src/main/jni/react/turbomodule/ReactCommon/TurboModuleManager.h

@@ -48,7 +48,9 @@ class TurboModuleManager : public jni::HybridClass<TurboModuleManager> {
    * they want to be long-lived or short-lived.
    */
   ModuleCache turboModuleCache_;
+#ifndef RCT_REMOVE_LEGACY_INTEROP
   ModuleCache legacyModuleCache_;
+#endif // RCT_REMOVE_LEGACY_INTEROP
 
   explicit TurboModuleManager(
       std::shared_ptr<CallInvoker> jsCallInvoker,
@@ -64,8 +66,10 @@ class TurboModuleManager : public jni::HybridClass<TurboModuleManager> {
   std::shared_ptr<TurboModule>
   getTurboModule(jni::alias_ref<jhybridobject> javaPart, const std::string &name, jsi::Runtime &runtime);
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
   static TurboModuleProviderFunctionTypeWithRuntime createLegacyModuleProvider(jni::alias_ref<jhybridobject> javaPart);
   std::shared_ptr<TurboModule> getLegacyModule(jni::alias_ref<jhybridobject> javaPart, const std::string &name);
+#endif // RCT_REMOVE_LEGACY_INTEROP
 };
 
 } // namespace facebook::react

packages/react-native/ReactCommon/react/nativemodule/core/platform/android/ReactCommon/JavaInteropTurboModule.cpp

@@ -7,6 +7,8 @@
 
 #include "JavaInteropTurboModule.h"
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
+
 namespace facebook::react {
 
 namespace {
@@ -189,3 +191,5 @@ std::vector<facebook::jsi::PropNameID> JavaInteropTurboModule::getPropertyNames(
 }
 
 } // namespace facebook::react
+
+#endif // RCT_REMOVE_LEGACY_INTEROP

packages/react-native/ReactCommon/react/nativemodule/core/platform/android/ReactCommon/JavaInteropTurboModule.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
+
 #include <string>
 #include <vector>
 
@@ -46,3 +48,5 @@ class JSI_EXPORT JavaInteropTurboModule : public JavaTurboModule {
 };
 
 } // namespace facebook::react
+
+#endif // RCT_REMOVE_LEGACY_INTEROP

packages/react-native/ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTInteropTurboModule.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
+
 #import <string>
 #import <vector>
 
@@ -88,3 +90,5 @@ class JSI_EXPORT ObjCInteropTurboModule : public ObjCTurboModule {
 };
 
 } // namespace facebook::react
+
+#endif // RCT_REMOVE_LEGACY_INTEROP

packages/react-native/ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTInteropTurboModule.mm

@@ -7,6 +7,8 @@
 
 #include "RCTInteropTurboModule.h"
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
+
 #import <objc/message.h>
 #import <objc/runtime.h>
 
@@ -694,3 +696,5 @@ T RCTConvertTo(SEL selector, id json)
 }
 
 } // namespace facebook::react
+
+#endif // RCT_REMOVE_LEGACY_INTEROP

packages/react-native/ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTTurboModuleManager.mm

@@ -161,10 +161,12 @@ bool isTurboModuleClass(Class cls)
   return [cls conformsToProtocol:@protocol(RCTTurboModule)];
 }
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
 bool isTurboModuleInstance(id module)
 {
   return isTurboModuleClass([module class]);
 }
+#endif // RCT_REMOVE_LEGACY_INTEROP
 
 struct ModuleQueuePair {
   id<RCTBridgeModule> module;
@@ -236,6 +238,7 @@ - (instancetype)initWithBridge:(RCTBridge *)bridge
     _sharedModuleQueue = dispatch_queue_create("com.meta.react.turbomodulemanager.queue", DISPATCH_QUEUE_SERIAL);
     _devMenuConfigurationDecorator = devMenuConfigurationDecorator;
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
     if (RCTTurboModuleInteropEnabled()) {
       // TODO(T174674274): Implement lazy loading of legacy modules in the new architecture.
       NSMutableDictionary<NSString *, id<RCTBridgeModule>> *legacyInitializedModules = [NSMutableDictionary new];
@@ -257,6 +260,7 @@ - (instancetype)initWithBridge:(RCTBridge *)bridge
       }
       _legacyEagerlyRegisteredModuleClasses = legacyEagerlyRegisteredModuleClasses;
     }
+#endif // RCT_REMOVE_LEGACY_INTEROP
 
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(bridgeWillInvalidateModules:)
@@ -418,6 +422,7 @@ - (instancetype)initWithBridgeProxy:(RCTBridgeProxy *)bridgeProxy
   return nullptr;
 }
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
 - (std::shared_ptr<TurboModule>)provideLegacyModule:(const char *)moduleName
 {
   auto legacyModuleLookup = _legacyModuleCache.find(moduleName);
@@ -465,6 +470,7 @@ - (instancetype)initWithBridgeProxy:(RCTBridgeProxy *)bridgeProxy
   _legacyModuleCache.insert({moduleName, turboModule});
   return turboModule;
 }
+#endif // RCT_REMOVE_LEGACY_INTEROP
 
 #pragma mark - Private Methods
 
@@ -946,6 +952,7 @@ - (void)installJSBindings:(facebook::jsi::Runtime &)runtime
     return turboModule;
   };
 
+#ifndef RCT_REMOVE_LEGACY_INTEROP
   if (RCTTurboModuleInteropEnabled()) {
     auto legacyModuleProvider =
         [self](jsi::Runtime & /*runtime*/, const std::string &name) -> std::shared_ptr<react::TurboModule> {
@@ -972,6 +979,9 @@ - (void)installJSBindings:(facebook::jsi::Runtime &)runtime
   } else {
     TurboModuleBinding::install(runtime, std::move(turboModuleProvider));
   }
+#else
+  TurboModuleBinding::install(runtime, std::move(turboModuleProvider));
+#endif // RCT_REMOVE_LEGACY_INTEROP
 }
 
 #pragma mark RCTTurboModuleRegistry