Make __turboModuleProxy accept > 1 args

Summary: For the JS TurboModule Codegen, we'll have to have `__turboModuleProxy` accept an additional argument: information containing what methods are supported on the TurboModule object. This diff makes calling `__turboModuleProxy` with two arguments valid.

Reviewed By: shergin

Differential Revision: D22743294

fbshipit-source-id: fd0050fc0373b43dc7089695c8e341137cad21f1

ReactCommon/turbomodule/core/TurboModuleBinding.cpp

@@ -64,9 +64,9 @@ jsi::Value TurboModuleBinding::jsProxy(
     const jsi::Value &thisVal,
     const jsi::Value *args,
     size_t count) {
-  if (count != 1) {
+  if (count < 1) {
     throw std::invalid_argument(
-        "TurboModuleBinding::jsProxy arg count must be 1");
+        "__turboModuleProxy must be called with at least 1 argument");
   }
   std::string moduleName = args[0].getString(runtime).utf8(runtime);
   std::shared_ptr<TurboModule> module = getModule(moduleName);