src/vs/workbench/services/history/browser/historyService.ts/EditorNavigationStack/goForward
class EditorNavigationStack:	async goForward(): Promise<void> {
		const navigated = await this.maybeGoCurrent();
		if (navigated) {
			return;
		}

		if (!this.canGoForward()) {
			return;
		}

		this.setIndex(this.index + 1);
		return this.navigate();
	}