src/vs/workbench/contrib/debug/browser/debugSession.ts/DebugSession/getAllThreads
class DebugSession:	getAllThreads(): IThread[] {
		const result: IThread[] = [];
		this.threadIds.forEach((threadId) => {
			const thread = this.threads.get(threadId);
			if (thread) {
				result.push(thread);
			}
		});
		return result;
	}