src/vs/editor/common/languages/languageConfigurationRegistry.ts/LanguageConfigurationContribution/cmp
class LanguageConfigurationContribution:	public static cmp(a: LanguageConfigurationContribution, b: LanguageConfigurationContribution) {
		if (a.priority === b.priority) {
			// higher order last
			return a.order - b.order;
		}
		// higher priority last
		return a.priority - b.priority;
	}