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/platform/credentials/test/common/testCredentialsService.ts

@@ -37,7 +37,7 @@ export class TestCredentialsService implements ICredentialsService {
 	}
 
 	addEventListener(handle: number, events: CredentialManagementEvents): IDisposable {
-		throw new Error('Method not implemented.');
+		return { dispose: () => { } };
 	}
 }