Merge pull request #5003 from enlight/first-mate-ts1.5

Use ES6 style import in typings tests for Atom's first-mate library

first-mate/first-mate-tests.ts

@@ -1,11 +1,6 @@
 /// <reference path="./first-mate.d.ts" />
 
-import firstMate = require('first-mate');
-var GrammarRegistry = firstMate.GrammarRegistry;
-var Grammar = firstMate.GrammarRegistry;
-type IToken = AtomFirstMate.IToken;
-// The import and type aliasing above can be done more concisely in TypeScript 1.5+:
-//import { GrammarRegistry, Grammar, IToken } from "first-mate";
+import { GrammarRegistry, Grammar, IToken } from "first-mate";
 
 var registry = new GrammarRegistry({ maxTokensPerLine: 100 });
 var grammar = registry.loadGrammarSync('javascript.json');