add inserted hook type to directive option (#3682)

types/options.d.ts

@@ -85,6 +85,7 @@ export type DirectiveFunction = (
 
 export interface DirectiveOptions {
   bind?: DirectiveFunction;
+  inserted?: DirectiveFunction;
   update?: DirectiveFunction;
   componentUpdated?: DirectiveFunction;
   unbind?: DirectiveFunction;

types/test/options-test.ts

@@ -109,6 +109,7 @@ Vue.component('component', {
   directives: {
     a: {
       bind() {},
+      inserted() {},
       update() {},
       componentMounted() {},
       unbind() {}