Properly expose errors in ads and tests (#8692)

* add code to expose errors outside zone

* remove unexpect error hiding

* remove uncessary code

* fix tests

* trying to catch more errros

* revert for testing

* wip

* wip

* figured out what was going on

* wip

* fix tests

* fix tests

src/sql/base/test/common/async.ts

@@ -1,19 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the Source EULA. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-
-import * as assert from 'assert';
-
-export async function assertThrowsAsync(fn: () => Promise<any>, expectedMessage?: string): Promise<void> {
-	let threw = false;
-	try {
-		await fn();
-	} catch (e) {
-		threw = true;
-		if (expectedMessage) {
-			assert.strictEqual(e.message, expectedMessage);
-		}
-	}
-	assert.equal(threw, true, 'Expected function to throw but it did not');
-}