message: Fixup imports.
diff: * http://polymer.github.io/PATENTS.txt
  */
  -// Install source map support for stack traces, etc.
  -require('source-map-support').install();
  -
  +import * as chalk from 'chalk';
  +import * as diff from 'diff';
  import * as fs from 'mz/fs';
  import * as path from 'path';
  +
  import {configureAnalyzer, configureConverter} from '../convert-package';
  -import diff = require('diff');
  -import chalk = require('chalk');
  +// Install source map support for stack traces, etc.
  +require('source-map-support').install();
  const fixturesDirPath =
  path.resolve(__dirname, '../../fixtures/generated/polymer');
  