Merge pull request #9426 from zhengbli/fix9411

Add nullcheck when calculating indentations for implort clause

tests/cases/fourslash/formattingIllegalImportClause.ts

@@ -0,0 +1,26 @@
+/// <reference path='fourslash.ts' />
+
+//// var expect = require('expect.js');
+//// import React   from 'react'/*1*/;
+//// import { mount } from 'enzyme';
+//// require('../setup');
+//// var Amount = require('../../src/js/components/amount');
+
+//// describe('<Failed />', () => {
+////   var history
+////   beforeEach(() => {
+////     history = createMemoryHistory();
+////     sinon.spy(history, 'pushState');
+////   });
+
+////   afterEach(() => {
+////   })
+
+////   it('redirects to order summary', () => {
+
+////   });
+//// });
+
+format.document();
+goTo.marker("1");
+verify.currentLineContentIs("import React from 'react';")