src/vs/workbench/services/dialogs/browser/simpleFileDialog.ts/handler
	export function handler(): ICommandHandler {
		return accessor => {
			const editorService = accessor.get(IEditorService);
			const activeEditorPane = editorService.activeEditorPane;
			if (activeEditorPane) {
				return editorService.save({ groupId: activeEditorPane.group.id, editor: activeEditorPane.input }, { saveAs: true, availableFileSystems: [Schemas.file], reason: SaveReason.EXPLICIT });
			}

			return Promise.resolve(undefined);
		};
	}