Overwrite addMixin (#8850)

* use addMixin

* here too

(cherry picked from commit 5a771b3)

Author: patricklx

packages/model/src/-private/promise-many-array.ts

@@ -58,7 +58,7 @@ export default class PromiseManyArray {
 
     if (DEPRECATE_A_USAGE) {
       const meta = Ember.meta(this);
-      meta.hasMixin = (mixin: Object) => {
+      meta.addMixin = (mixin: Object) => {
         deprecate(`Do not use A() on an EmberData PromiseManyArray`, false, {
           id: 'ember-data:no-a-with-array-like',
           until: '5.0',
@@ -73,7 +73,7 @@ export default class PromiseManyArray {
       };
     } else if (DEBUG) {
       const meta = Ember.meta(this);
-      meta.hasMixin = (mixin: Object) => {
+      meta.addMixin = (mixin: object) => {
         assert(`Do not use A() on an EmberData PromiseManyArray`);
       };
     }

packages/store/src/-private/record-arrays/identifier-array.ts

@@ -524,7 +524,7 @@ class IdentifierArray {
       };
     } else if (DEBUG) {
       const meta = Ember.meta(this);
-      meta.hasMixin = (mixin: Object) => {
+      meta.addMixin = (mixin: Object) => {
         assert(`Do not call A() on EmberData RecordArrays`);
       };
     }