src/vs/editor/contrib/folding/browser/folding.ts/GotoParentFoldAction/invoke
class GotoParentFoldAction:	invoke(_foldingController: FoldingController, foldingModel: FoldingModel, editor: ICodeEditor): void {
		const selectedLines = this.getSelectedLines(editor);
		if (selectedLines.length > 0) {
			const startLineNumber = getParentFoldLine(selectedLines[0], foldingModel);
			if (startLineNumber !== null) {
				editor.setSelection({
					startLineNumber: startLineNumber,
					startColumn: 1,
					endLineNumber: startLineNumber,
					endColumn: 1
				});
			}
		}
	}