src/vs/editor/contrib/indentation/indentation.ts/IndentationToSpacesAction/constructor
class IndentationToSpacesAction:	constructor() {
		super({
			id: IndentationToSpacesAction.ID,
			label: nls.localize('indentationToSpaces', "Convert Indentation to Spaces"),
			alias: 'Convert Indentation to Spaces',
			precondition: EditorContextKeys.writable
		});
	}