Merge branch 'master' into v5

src/@ionic-native/core/decorators/common.ts

@@ -415,11 +415,11 @@ export function cordovaWarn(pluginName: string, method?: string): void {
 /**
  * @private
  */
-export const wrap = function(
+export const wrap = (
   pluginObj: any,
   methodName: string,
   opts: CordovaOptions = {}
-): Function {
+) => {
   return (...args: any[]) => {
     if (opts.sync) {
       // Sync doesn't wrap the plugin with a promise or observable, it returns the result as-is

src/@ionic-native/core/ng1.ts

@@ -13,9 +13,9 @@ export function initAngular1(plugins: any) {
       const serviceName = '$cordova' + name;
       const cls = plugins[name];
 
-      (function(serviceName, cls, name) {
+      ((serviceName, cls, name) => {
         ngModule.service(serviceName, [
-          function() {
+          () => {
             const funcs = window.angular.copy(cls);
             funcs.__proto__['name'] = name;
             return funcs;