fix class props

packages/@ember/debug/ember-inspector-support/adapters/web-extension.ts

@@ -2,8 +2,8 @@ import BasicAdapter from './basic';
 import { run } from '@ember/runloop';
 
 export default class WebExtension extends BasicAdapter {
-  private _channel!: MessageChannel;
-  private _chromePort!: MessagePort;
+  declare private _channel: MessageChannel;
+  declare private _chromePort: MessagePort;
   init() {
     this._channel = new MessageChannel();
     this._chromePort = this._channel?.port1;

packages/@ember/debug/ember-inspector-support/container-debug.ts

@@ -1,7 +1,7 @@
 import DebugPort from './debug-port';
 
 export default class ContainerDebug extends DebugPort {
-  objectToConsole: any;
+  declare objectToConsole: any;
   get objectInspector() {
     return this.namespace?.objectInspector;
   }

packages/@ember/debug/ember-inspector-support/data-debug.ts

@@ -2,9 +2,9 @@ import DebugPort from './debug-port';
 import { guidFor } from '@ember/debug/ember-inspector-support/utils/ember/object/internals';
 
 export default class DataDebug extends DebugPort {
-  portNamespace!: string;
-  sentTypes!: Record<string, any>;
-  sentRecords!: Record<string, any>;
+  declare portNamespace: string;
+  declare sentTypes: Record<string, any>;
+  declare sentRecords: Record<string, any>;
   init() {
     super.init();
     this.sentTypes = {};

packages/@ember/debug/ember-inspector-support/deprecation-debug.ts

@@ -7,22 +7,22 @@ import { cancel, debounce } from '@ember/runloop';
 import type SourceMapSupport from '@ember/debug/ember-inspector-support/libs/source-map';
 
 export default class DeprecationDebug extends DebugPort {
-  options: any;
-  private _warned!: boolean;
-  debounce: any;
-  private _watching: any;
-  deprecationsToSend: {
+  declare options: any;
+  declare private _warned: boolean;
+  declare debounce: any;
+  declare private _watching: any;
+  declare deprecationsToSend: {
     stackStr: string;
     message: string;
     url: string;
     count: number;
     id: string;
     sources: any[];
   }[];
-  private sourceMap!: SourceMapSupport;
-  groupedDeprecations: any;
-  deprecations: any;
-  private __emberCliConfig: any;
+  declare private sourceMap: SourceMapSupport;
+  declare groupedDeprecations: any;
+  declare deprecations: any;
+  declare private __emberCliConfig: any;
   static {
     this.prototype.portNamespace = 'deprecation';
     this.prototype.sourceMap = new SourceMap();

packages/@ember/debug/ember-inspector-support/general-debug.ts

@@ -12,8 +12,8 @@ import DebugPort from './debug-port';
  * @module ember-debug/general-debug
  */
 export default class GeneralDebug extends DebugPort {
-  portNamespace!: string;
-  messages!: {
+  declare portNamespace: string;
+  declare messages: {
     /**
      * Called from the inspector to check if the inspected app has been booted.
      */

packages/@ember/debug/ember-inspector-support/port.ts

@@ -4,7 +4,7 @@ import BaseObject from '@ember/debug/ember-inspector-support/utils/base-object';
 import Evented from '@ember/debug/ember-inspector-support/utils/evented';
 
 export default class Port extends Evented.extend(BaseObject) {
-  now!: number;
+  declare now: number;
   constructor(data: any) {
     super(data);
   }

packages/@ember/debug/ember-inspector-support/promise-debug.ts

@@ -9,12 +9,12 @@ import RSVP from 'rsvp';
 import type PromiseModel from './models/promise';
 
 export default class PromiseDebug extends DebugPort {
-  private __session: any;
-  promiseAssembler!: PromiseAssembler;
-  updatedPromises: PromiseModel[];
-  releaseMethods: (() => void)[];
-  portNamespace!: string;
-  messages!: {
+  declare private __session: any;
+  declare promiseAssembler: PromiseAssembler;
+  declare updatedPromises: PromiseModel[];
+  declare releaseMethods: (() => void)[];
+  declare portNamespace: string;
+  declare messages: {
     getAndObservePromises(): void;
     releasePromises(): void;
     sendValueToConsole(message: any): void;

packages/@ember/debug/ember-inspector-support/render-debug.ts

@@ -10,7 +10,7 @@ let profileManager = new ProfileManager();
 _subscribeToRenderEvents();
 
 export default class RenderDebug extends DebugPort {
-  profileManager: ProfileManager;
+  declare profileManager: ProfileManager;
   constructor(data?: any) {
     super(data);
     this.profileManager = profileManager;

packages/@ember/debug/ember-inspector-support/route-debug.ts

@@ -8,8 +8,8 @@ const { hasOwnProperty } = Object.prototype;
 
 export default class RouteDebug extends DebugPort {
   _cachedRouteTree = null;
-  private __currentURL: any;
-  private __currentRouter: any;
+  declare private __currentURL: any;
+  declare private __currentRouter: any;
   init() {
     super.init();
     this.__currentURL = this.currentURL;

packages/@ember/debug/ember-inspector-support/view-debug.ts

@@ -5,10 +5,10 @@ import ViewInspection from '@ember/debug/ember-inspector-support/libs/view-inspe
 import bound from '@ember/debug/ember-inspector-support/utils/bound-method';
 
 export default class ViewDebug extends DebugPort {
-  viewInspection!: ViewInspection;
-  renderTree!: RenderTree;
+  declare viewInspection: ViewInspection;
+  declare renderTree: RenderTree;
   private scheduledSendTree: number | null = null;
-  lastRightClicked: any;
+  declare lastRightClicked: any;
   get adapter() {
     return this.namespace?.adapter;
   }