Codemod old APIs away.

src/shared/utils/__tests__/OrderedMap-test.js

@@ -134,7 +134,7 @@ var extractUniqueID = function(entity) {
 
 describe('OrderedMap', function() {
   beforeEach(function() {
-    require('mock-modules').dumpCache();
+    jest.resetModuleRegistry();
     OrderedMap = require('OrderedMap');
   });
 

src/shared/utils/__tests__/Transaction-test.js

@@ -18,7 +18,7 @@ var Transaction;
 var INIT_ERRORED = 'initErrored';     // Just a dummy value to check for.
 describe('Transaction', function() {
   beforeEach(function() {
-    require('mock-modules').dumpCache();
+    jest.resetModuleRegistry();
     Transaction = require('Transaction');
   });
 

src/shared/utils/__tests__/accumulateInto-test.js

@@ -11,7 +11,7 @@
 
 'use strict';
 
-require('mock-modules')
+jest
   .dontMock('accumulateInto');
 
 var accumulateInto;

src/shared/utils/__tests__/traverseAllChildren-test.js

@@ -16,7 +16,7 @@ describe('traverseAllChildren', function() {
   var React;
   var ReactFragment;
   beforeEach(function() {
-    require('mock-modules').dumpCache();
+    jest.resetModuleRegistry();
     traverseAllChildren = require('traverseAllChildren');
     React = require('React');
     ReactFragment = require('ReactFragment');