message: Use native getters in BaseFileItem
diff: import { attr } from '@ember-decorators/data';
  import { computed } from '@ember-decorators/object';
  import { or } from '@ember-decorators/object/computed';
  -import { get } from '@ember/object';
  import OsfModel from './osf-model';
  /**
  @@ -34,12 +33,12 @@ export default class BaseFileItem extends OsfModel {
  @or('isNode', 'isProvider', 'isFolder') canHaveChildren!: boolean;
  @computed('isFileModel', 'kind')
  - get isFolder(this: BaseFileItem): boolean {
  - return get(this, 'isFileModel') && get(this, 'kind') === FileItemKinds.Folder;
  + get isFolder() {
  + return this.isFileModel && this.kind === FileItemKinds.Folder;
  }
  @computed('isFileModel', 'kind')
  - get isFile(this: BaseFileItem) {
  - return get(this, 'isFileModel') && get(this, 'kind') === FileItemKinds.File;
  + get isFile() {
  + return this.isFileModel && this.kind === FileItemKinds.File;
  }
  }
  