src/vs/workbench/services/history/browser/historyService.ts/HistoryService/handleActiveEditorChange
class HistoryService:	private handleActiveEditorChange(group: IEditorGroup, editorPane?: IEditorPane): void {
		this.handleActiveEditorChangeInHistory(editorPane);
		this.handleActiveEditorChangeInNavigationStacks(group, editorPane);
	}