Use Proxy for accessing properties of remote function

spec/fixtures/module/function-with-properties.js

@@ -1,8 +1,16 @@
-function foo () {}
+function foo () {
+  return 'hello'
+}
 foo.bar = 'baz'
 foo.nested = {
   prop: 'yes'
 }
+foo.method1 = function () {
+  return 'world'
+}
+foo.method1.prop1 = function () {
+  return 123
+}
 
 module.exports = {
   foo: foo