src/vs/workbench/services/extensions/common/extensionHostManager.ts/LazyStartExtensionHostManager/extensionTestsExecute
class LazyStartExtensionHostManager:	public async extensionTestsExecute(): Promise<number> {
		await this._startCalled.wait();
		const actual = await this._getOrCreateActualAndStart(`execute tests.`);
		return actual.extensionTestsExecute();
	}