add a bunch of strict field initializations

src/vs/workbench/api/common/extHostCodeInsets.ts

@@ -63,7 +63,7 @@ export class ExtHostEditorInsets implements ExtHostEditorInsetsShape {
 
 			private readonly _uuid = generateUuid();
 			private _html: string = '';
-			private _options: vscode.WebviewOptions;
+			private _options: vscode.WebviewOptions = Object.create(null);
 
 			toWebviewResource(resource: vscode.Uri): vscode.Uri {
 				return toWebviewResource(that._initData, this._uuid, resource);

src/vs/workbench/api/common/extHostDocumentData.ts

@@ -26,7 +26,7 @@ export class ExtHostDocumentData extends MirrorTextModel {
 	private _proxy: MainThreadDocumentsShape;
 	private _languageId: string;
 	private _isDirty: boolean;
-	private _document: vscode.TextDocument;
+	private _document?: vscode.TextDocument;
 	private _textLines: vscode.TextLine[] = [];
 	private _isDisposed: boolean = false;
 

src/vs/workbench/api/common/extHostDocumentsAndEditors.ts

@@ -17,7 +17,7 @@ export class ExtHostDocumentsAndEditors implements ExtHostDocumentsAndEditorsSha
 
 	private _disposables: Disposable[] = [];
 
-	private _activeEditorId: string | null;
+	private _activeEditorId: string | null = null;
 
 	private readonly _editors = new Map<string, ExtHostTextEditor>();
 	private readonly _documents = new Map<string, ExtHostDocumentData>();

src/vs/workbench/api/common/extHostFileSystem.ts

@@ -155,7 +155,7 @@ export class ExtHostFileSystem implements ExtHostFileSystemShape {
 	private readonly _usedSchemes = new Set<string>();
 	private readonly _watches = new Map<number, IDisposable>();
 
-	private _linkProviderRegistration: IDisposable;
+	private _linkProviderRegistration?: IDisposable;
 	private _handlePool: number = 0;
 
 	readonly fileSystem: vscode.FileSystem;

src/vs/workbench/api/common/extHostMemento.ts

@@ -14,7 +14,7 @@ export class ExtensionMemento implements IExtensionMemento {
 	private readonly _storage: ExtHostStorage;
 
 	private readonly _init: Promise<ExtensionMemento>;
-	private _value: { [n: string]: any; };
+	private _value?: { [n: string]: any; };
 	private readonly _storageListener: IDisposable;
 
 	constructor(id: string, global: boolean, storage: ExtHostStorage) {
@@ -41,7 +41,7 @@ export class ExtensionMemento implements IExtensionMemento {
 	get<T>(key: string): T | undefined;
 	get<T>(key: string, defaultValue: T): T;
 	get<T>(key: string, defaultValue?: T): T {
-		let value = this._value[key];
+		let value = this._value![key];
 		if (typeof value === 'undefined') {
 			value = defaultValue;
 		}
@@ -49,8 +49,8 @@ export class ExtensionMemento implements IExtensionMemento {
 	}
 
 	update(key: string, value: any): Promise<void> {
-		this._value[key] = value;
-		return this._storage.setValue(this._shared, this._id, this._value);
+		this._value![key] = value;
+		return this._storage.setValue(this._shared, this._id, this._value!);
 	}
 
 	dispose(): void {

src/vs/workbench/api/common/extHostOutput.ts

@@ -27,6 +27,7 @@ export abstract class AbstractExtHostOutputChannel extends Disposable implements
 		this._name = name;
 		this._proxy = proxy;
 		this._id = proxy.$register(this.name, log, file);
+		this._disposed = false;
 		this._offset = 0;
 	}
 
@@ -121,7 +122,7 @@ export class ExtHostOutputService implements ExtHostOutputServiceShape {
 	private readonly _logsLocation: URI;
 	private readonly _proxy: MainThreadOutputServiceShape;
 	private readonly _channels: Map<string, AbstractExtHostOutputChannel> = new Map<string, AbstractExtHostOutputChannel>();
-	private _visibleChannelDisposable: IDisposable;
+	private _visibleChannelDisposable?: IDisposable;
 
 	constructor(factory: IOutputChannelFactory, logsLocation: URI, mainContext: IMainContext) {
 		this._factory = factory;