src/vs/workbench/contrib/snippets/browser/snippetsFile.ts/Snippet/compare
class Snippet:	static compare(a: Snippet, b: Snippet): number {
		if (a.snippetSource < b.snippetSource) {
			return -1;
		} else if (a.snippetSource > b.snippetSource) {
			return 1;
		} else if (a.source < b.source) {
			return -1;
		} else if (a.source > b.source) {
			return 1;
		} else if (a.name > b.name) {
			return 1;
		} else if (a.name < b.name) {
			return -1;
		} else {
			return 0;
		}
	}