Remove knowledge of fbjs from the packager

Summary:Follow-up to facebook/react-native#5084

This…
- changes all requires within RN to `require('fbjs/lib/…')`
- updates `.flowconfig`
- updates `packager/blacklist.js`
- adapts tests
- removes things from `Libraries/vendor/{core,emitter}` that are also in fbjs
- removes knowledge of `fbjs` from the packager

Closes facebook/react-native#5084

public

Reviewed By: bestander

Differential Revision: D2926835

fb-gh-sync-id: 2095e22b2f38e032599d1f2601722b3560e8b6e9
shipit-source-id: 2095e22b2f38e032599d1f2601722b3560e8b6e9

src/container/__tests__/RelayRenderer_renderArgs-test.js

@@ -203,7 +203,7 @@ describe('RelayRenderer.renderArgs', () => {
     const {retry} = render.mock.calls[1][0];
     expect(typeof retry).toBe('function');
     expect(() => retry()).toThrowError(
-      'RelayRenderer: You tried to call `retry`, but the last request did ' +
+      'Invariant Violation: RelayRenderer: You tried to call `retry`, but the last request did ' +
       'not fail. You can only call this when the last request has failed.'
     );
   });

src/mutation/__tests__/RelayMutationQueue-test.js

@@ -166,7 +166,7 @@ describe('RelayMutationQueue', () => {
       var transaction = mutationQueue.createTransaction(mockMutation1);
       transaction.commit();
       expect(() => transaction.commit()).toThrowError(
-        'RelayMutationTransaction: Only transactions with status ' +
+        'Invariant Violation: RelayMutationTransaction: Only transactions with status ' +
         '`UNCOMMITTED` can be comitted.'
       );
     });
@@ -322,7 +322,7 @@ describe('RelayMutationQueue', () => {
       expect(failureCallback1).toBeCalled();
       expect(failureCallback2).toBeCalled();
       expect(() => transaction1.getStatus()).toThrowError(
-        'RelayMutationQueue: `0` is not a valid pending transaction ID.'
+        'Invariant Violation: RelayMutationQueue: `0` is not a valid pending transaction ID.'
       );
       expect(transaction2.getStatus()).toBe(
         RelayMutationTransactionStatus.COLLISION_COMMIT_FAILED
@@ -427,7 +427,7 @@ describe('RelayMutationQueue', () => {
         RelayMutationTransactionStatus.COMMIT_FAILED
       );
       expect(() => transaction2.getStatus()).toThrowError(
-        'RelayMutationQueue: `1` is not a valid pending transaction ID.'
+        'Invariant Violation: RelayMutationQueue: `1` is not a valid pending transaction ID.'
       );
       expect(transaction3.getStatus()).toBe(
         RelayMutationTransactionStatus.COLLISION_COMMIT_FAILED

src/query/__tests__/RelayQL-test.js

@@ -98,7 +98,7 @@ describe('RelayQL', () => {
         }
       `;
     }).toThrowError(
-      'RelayQL: Invalid argument `size` supplied via template substitution. ' +
+      'Invariant Violation: RelayQL: Invalid argument `size` supplied via template substitution. ' +
       'Instead, use an inline variable (e.g. `comments(count: $count)`).'
     );
   });

src/store/__tests__/RelayRecordWriter-test.js

@@ -172,7 +172,7 @@ describe('RelayRecordWriter', () => {
       expect(() => {
         store.deleteField('1', 'name', null);
       }).toThrowError(
-        'RelayRecordWriter.deleteField(): Expected record `1` to exist ' +
+        'Invariant Violation: RelayRecordWriter.deleteField(): Expected record `1` to exist ' +
         'before deleting field `name`.'
       );
     });

src/store/__tests__/readRelayQueryData-test.js

@@ -599,7 +599,7 @@ describe('readRelayQueryData', () => {
     `);
     expect(
       () => readData(getStoreData({records}), query, 'story_id')
-    ).toThrowError(error);
+    ).toThrowError('Invariant Violation: ' + error);
 
     // Note that `pageInfo` also triggers the error...
     const pageInfoFragment = Relay.QL`
@@ -620,7 +620,7 @@ describe('readRelayQueryData', () => {
     `);
     expect(
       () => readData(getStoreData({records}), query, 'story_id')
-    ).toThrowError(error);
+    ).toThrowError('Invariant Violation: ' + error);
 
     // ...but not `count`:
     query = getNode(Relay.QL`fragment on Story{feedback{likers{count}}}`);
@@ -662,12 +662,12 @@ describe('readRelayQueryData', () => {
       fragment on Story{feedback{likers{${fragmentReference}}}}
     `);
     expect(() => readData(getStoreData({records}), query, 'story_id'))
-      .toThrowError(error);
+      .toThrowError('Invariant Violation: ' + error);
 
     let fragment = Relay.QL`fragment on LikersOfContentConnection{pageInfo}`;
     query = getNode(Relay.QL`fragment on Story{feedback{likers{${fragment}}}}`);
     expect(() => readData(getStoreData({records}), query, 'story_id'))
-      .toThrowError(error);
+      .toThrowError('Invariant Violation: ' + error);
 
     fragment = Relay.QL`fragment on LikersOfContentConnection{count}`;
     query = getNode(Relay.QL`fragment on Story{feedback{likers{${fragment}}}}`);

src/tools/__mocks__/RelayTestUtils.js

@@ -421,7 +421,7 @@ var RelayTestUtils = {
     toFailInvariant() {
       return {
         compare(actual, expected) {
-          expect(actual).toThrowError(expected);
+          expect(actual).toThrowError('Invariant Violation: ' + expected);
           return {
             pass: true,
           };