text: //// [undeclaredModuleError.ts]
  import fs = require('fs');
  function readdir(path: string, accept: (stat: fs.Stats, name: string) => boolean, callback: (error: Error, results: { name: string; stat: fs.Stats; }[]) => void ) {}
  
  function join(...paths: string[]) {}
  
  function instrumentFile(covFileDir: string, covFileName: string, originalFilePath: string) {
      fs.readFile(originalFilePath, () => {       
          readdir(covFileDir, () => {
          } , (error: Error, files: {}[]) => {
                  files.forEach((file) => {
                      var fullPath = join(IDoNotExist);
                  } );
              } );
      } );
  }
  
  //// [undeclaredModuleError.js]
  define(["require", "exports", 'fs'], function (require, exports, fs) {
      function readdir(path, accept, callback) {
      }
      function join() {
          var paths = [];
          for (var _i = 0; _i < arguments.length; _i++) {
              paths[_i - 0] = arguments[_i];
          }
      }
      function instrumentFile(covFileDir, covFileName, originalFilePath) {
          fs.readFile(originalFilePath, function () {
              readdir(covFileDir, function () {
              }, function (error, files) {
                  files.forEach(function (file) {
                      var fullPath = join(IDoNotExist);
                  });
              });
          });
      }
  });
  