Support ModuleHolder-based lazy init of C++ modules with C++ bridge on android

Reviewed By: AaaChiuuu

Differential Revision: D4614479

fbshipit-source-id: 109ac34b8688f0113675e4a4479d1ddcc6169ed4

ReactCommon/cxxreact/JSCNativeModules.cpp

@@ -11,6 +11,10 @@ JSCNativeModules::JSCNativeModules(std::shared_ptr<ModuleRegistry> moduleRegistr
   m_moduleRegistry(std::move(moduleRegistry)) {}
 
 JSValueRef JSCNativeModules::getModule(JSContextRef context, JSStringRef jsName) {
+  if (!m_moduleRegistry) {
+    return Value::makeUndefined(context);
+  }
+
   std::string moduleName = String::ref(context, jsName).str();
 
   const auto it = m_objects.find(moduleName);