Update all Jest packages to 17.x (facebook#8327)

* Update all Jest packages to 17.x, cache babel-jest transforms

* Remove the caching

Looking at the other builds it doesn't seem to actually be that necessary.  The bottleneck is executors, not build time.

* Remove unnecessary package, fix fiber test runner

* Regenerate yarn lockfile

grunt/tasks/jest.js

@@ -7,7 +7,7 @@ function run(done, coverage) {
   grunt.log.writeln('running jest');
 
   var args = [
-    path.join('node_modules', 'jest', 'bin', 'jest'),
+    path.join('node_modules', 'jest-cli', 'bin', 'jest'),
   ];
   if (coverage) {
     args.push('--coverage');

package.json

@@ -9,6 +9,7 @@
     "babel-cli": "^6.6.5",
     "babel-core": "^6.0.0",
     "babel-eslint": "^7.1.0",
+    "babel-jest": "17.0.2",
     "babel-plugin-check-es2015-constants": "^6.5.0",
     "babel-plugin-syntax-trailing-function-commas": "^6.5.0",
     "babel-plugin-transform-class-properties": "^6.11.5",
@@ -61,10 +62,10 @@
     "gulp-load-plugins": "^1.2.4",
     "gulp-util": "^3.0.7",
     "gzip-js": "~0.3.2",
-    "jest": "^15.1.1",
-    "jest-config": "^15.1.1",
-    "jest-jasmine2": "^15.1.1",
-    "jest-runtime": "^15.1.1",
+    "jest-cli": "17.0.2",
+    "jest-config": "^17.0.2",
+    "jest-jasmine2": "^17.0.2",
+    "jest-runtime": "^17.0.2",
     "loose-envify": "^1.1.0",
     "merge-stream": "^1.0.0",
     "object-assign": "^4.1.0",
@@ -98,7 +99,9 @@
       "/react/build/"
     ],
     "rootDir": "",
-    "scriptPreprocessor": "scripts/jest/preprocessor.js",
+    "transform": {
+      ".*": "scripts/jest/preprocessor.js"
+    },
     "setupFiles": [
       "scripts/jest/environment.js"
     ],

scripts/fiber/record-tests

@@ -8,8 +8,9 @@ const fs = require('fs');
 const os = require('os');
 const path = require('path');
 
-const SearchSource = require('jest').SearchSource;
-const TestRunner = require('jest').TestRunner;
+const SearchSource = require('jest-cli').SearchSource;
+const TestRunner = require('jest-cli').TestRunner;
+const TestWatcher = require('jest-cli/build/TestWatcher');
 
 const createHasteContext = require('jest-runtime').createHasteContext;
 const readConfig = require('jest-config').readConfig;
@@ -95,7 +96,8 @@ function runJest() {
                 getTestSummary: () => 'You did it!'
               }
             );
-            return runner.runTests(data.paths);
+            const watcher = new TestWatcher({isWatchMode: false});
+            return runner.runTests(data.paths, watcher);
           });
       });
     });