src/vs/editor/common/languageFeatureRegistry.ts/LanguageFeatureRegistry/all
class LanguageFeatureRegistry:	all(model: ITextModel): T[] {
		if (!model) {
			return [];
		}

		this._updateScores(model);
		const result: T[] = [];

		// from registry
		for (let entry of this._entries) {
			if (entry._score > 0) {
				result.push(entry.provider);
			}
		}

		return result;
	}