use sync progress when reporting chunks (microsoft#196610)

fixes microsoft/vscode-internalbacklog#4766

Author: jrieken

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

@@ -9,7 +9,7 @@ import { ILogService } from 'vs/platform/log/common/log';
 import { ExtHostChatProviderShape, IMainContext, MainContext, MainThreadChatProviderShape } from 'vs/workbench/api/common/extHost.protocol';
 import * as typeConvert from 'vs/workbench/api/common/extHostTypeConverters';
 import type * as vscode from 'vscode';
-import { AsyncProgress } from 'vs/platform/progress/common/progress';
+import { Progress } from 'vs/platform/progress/common/progress';
 import { IChatMessage, IChatResponseFragment } from 'vs/workbench/contrib/chat/common/chatProvider';
 import { ExtensionIdentifier, ExtensionIdentifierMap } from 'vs/platform/extensions/common/extensions';
 import { AsyncIterableSource } from 'vs/base/common/async';
@@ -119,12 +119,12 @@ export class ExtHostChatProvider implements ExtHostChatProviderShape {
 		if (!data) {
 			return;
 		}
-		const progress = new AsyncProgress<vscode.ChatResponseFragment>(async fragment => {
+		const progress = new Progress<vscode.ChatResponseFragment>(async fragment => {
 			if (token.isCancellationRequested) {
 				this._logService.warn(`[CHAT](${data.extension.value}) CANNOT send progress because the REQUEST IS CANCELLED`);
 				return;
 			}
-			await this._proxy.$handleProgressChunk(requestId, { index: fragment.index, part: fragment.part });
+			this._proxy.$handleProgressChunk(requestId, { index: fragment.index, part: fragment.part });
 		});
 
 		return data.provider.provideChatResponse(messages.map(typeConvert.ChatMessage.to), options, progress, token);