Add tests for setting remote function properties

lib/renderer/api/remote.js

@@ -154,6 +154,8 @@ const setObjectPrototype = function (ref, object, metaId, descriptor) {
 // Wrap function in Proxy for accessing remote properties
 const proxyFunctionProperties = function (remoteMemberFunction, metaId, name) {
   let loaded = false
+
+  // Lazily load function properties
   const loadRemoteProperties = () => {
     if (loaded) return
     loaded = true