src/vs/editor/common/cursorCommon.ts/CursorConfiguration/_getLanguageDefinedShouldAutoClose
class CursorConfiguration:	private _getLanguageDefinedShouldAutoClose(languageId: string): (ch: string) => boolean {
		const autoCloseBeforeSet = this.languageConfigurationService.getLanguageConfiguration(languageId).getAutoCloseBeforeSet();
		return c => autoCloseBeforeSet.indexOf(c) !== -1;
	}