refactor(examples/e2e_test): Ts'ifying examples/e2_test

Translate AtScript in examples/e2e_test to TypeScript.

Closes #2294

modules/examples/e2e_test/material/input_spec.ts

@@ -0,0 +1,16 @@
+import {verifyNoBrowserErrors} from 'angular2/src/test_lib/e2e_util';
+
+describe('md-input', function() {
+  var url = 'examples/src/material/input/index.html';
+
+  beforeEach(() => { browser.get(url); });
+  afterEach(verifyNoBrowserErrors);
+
+  it('should enter a value to the input', () => {
+    var input = element.all(by.css('md-input-container input')).first();
+
+    input.sendKeys('Hello');
+
+    expect(input.getAttribute('value')).toEqual('Hello');
+  });
+});