[flow] Remove custom flow error tag

.flowconfig

@@ -55,7 +55,6 @@ suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(<VERSION>\\)? *\\(si
 suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(<VERSION>\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+
 suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
 suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
-suppress_comment=\\(.\\|\n\\)*\\$FlowBug.*
 
 unsafe.enable_getters_and_setters=true
 

lib/modules/auth/PhoneAuthListener.js

@@ -109,7 +109,7 @@ export default class PhoneAuthListener {
       const type = events[i];
       SharedEventEmitter.once(
         this._internalEvents[type],
-        // $FlowBug: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
+        // $FlowExpectedError: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
         this[`_${type}Handler`].bind(this)
       );
     }

lib/modules/core/app.js

@@ -129,7 +129,7 @@ export default class App {
         throw new Error(INTERNALS.STRINGS.ERROR_PROTECTED_PROP(key));
       }
 
-      // $FlowBug: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
+      // $FlowExpectedError: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
       this[key] = props[key];
       this._extendedProps[key] = true;
     }

lib/modules/database/Reference.js

@@ -317,9 +317,9 @@ export default class Reference extends ReferenceBase {
     if (isFunction(onComplete)) {
       return (
         promise
-          // $FlowBug: Reports that onComplete can change to null despite the null check: https://github.com/facebook/flow/issues/1655
+          // $FlowExpectedError: Reports that onComplete can change to null despite the null check: https://github.com/facebook/flow/issues/1655
           .then(() => onComplete(null, newRef))
-          // $FlowBug: Reports that onComplete can change to null despite the null check: https://github.com/facebook/flow/issues/1655
+          // $FlowExpectedError: Reports that onComplete can change to null despite the null check: https://github.com/facebook/flow/issues/1655
           .catch(error => onComplete(error, null))
       );
     }

lib/modules/firestore/DocumentReference.js

@@ -96,7 +96,7 @@ export default class DocumentReference {
           'DocumentReference.onSnapshot failed: Second argument must be a valid function.'
         );
       }
-      // $FlowBug: Not coping with the overloaded method signature
+      // $FlowExpectedError: Not coping with the overloaded method signature
       observer = {
         next: optionsOrObserverOrOnNext,
         error: observerOrOnNextOrOnError,
@@ -116,7 +116,7 @@ export default class DocumentReference {
               'DocumentReference.onSnapshot failed: Observer.error must be a valid function.'
             );
           }
-          // $FlowBug: Not coping with the overloaded method signature
+          // $FlowExpectedError: Not coping with the overloaded method signature
           observer = {
             next: optionsOrObserverOrOnNext.next,
             error: optionsOrObserverOrOnNext.error,
@@ -140,7 +140,7 @@ export default class DocumentReference {
               'DocumentReference.onSnapshot failed: Third argument must be a valid function.'
             );
           }
-          // $FlowBug: Not coping with the overloaded method signature
+          // $FlowExpectedError: Not coping with the overloaded method signature
           observer = {
             next: observerOrOnNextOrOnError,
             error: onError,

lib/modules/firestore/Query.js

@@ -183,7 +183,7 @@ export default class Query {
           'Query.onSnapshot failed: Second argument must be a valid function.'
         );
       }
-      // $FlowBug: Not coping with the overloaded method signature
+      // $FlowExpectedError: Not coping with the overloaded method signature
       observer = {
         next: optionsOrObserverOrOnNext,
         error: observerOrOnNextOrOnError,
@@ -203,7 +203,7 @@ export default class Query {
               'Query.onSnapshot failed: Observer.error must be a valid function.'
             );
           }
-          // $FlowBug: Not coping with the overloaded method signature
+          // $FlowExpectedError: Not coping with the overloaded method signature
           observer = {
             next: optionsOrObserverOrOnNext.next,
             error: optionsOrObserverOrOnNext.error,
@@ -231,7 +231,7 @@ export default class Query {
               'Query.onSnapshot failed: Third argument must be a valid function.'
             );
           }
-          // $FlowBug: Not coping with the overloaded method signature
+          // $FlowExpectedError: Not coping with the overloaded method signature
           observer = {
             next: observerOrOnNextOrOnError,
             error: onError,

lib/modules/storage/task.js

@@ -92,7 +92,7 @@ export default class StorageTask {
     if (!isFunction(f)) return null;
     return error => {
       const _error = new Error(error.message);
-      // $FlowFixMe
+      // $FlowExpectedError
       _error.code = error.code;
       return f && f(_error);
     };

lib/utils/apps.js

@@ -32,7 +32,7 @@ export default {
   },
 
   apps(): Array<App> {
-    // $FlowBug: Object.values always returns mixed type: https://github.com/facebook/flow/issues/2221
+    // $FlowExpectedError: Object.values always returns mixed type: https://github.com/facebook/flow/issues/2221
     return Object.values(APPS);
   },
 
@@ -174,7 +174,7 @@ export default {
       if (namespace === 'crashlytics') {
         return _app.fabric[namespace]();
       }
-      // $FlowBug: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
+      // $FlowExpectedError: Flow doesn't support indexable signatures on classes: https://github.com/facebook/flow/issues/1323
       const module = _app[namespace];
       return module();
     };

lib/utils/internals.js

@@ -21,35 +21,35 @@ const GRADLE_DEPS = {
 };
 
 const PLAY_SERVICES_CODES = {
-  // $FlowBug: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
+  // $FlowExpectedError: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
   1: {
     code: 'SERVICE_MISSING',
     message: 'Google Play services is missing on this device.',
   },
-  // $FlowBug: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
+  // $FlowExpectedError: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
   2: {
     code: 'SERVICE_VERSION_UPDATE_REQUIRED',
     message:
       'The installed version of Google Play services on this device is out of date.',
   },
-  // $FlowBug: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
+  // $FlowExpectedError: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
   3: {
     code: 'SERVICE_DISABLED',
     message:
       'The installed version of Google Play services has been disabled on this device.',
   },
-  // $FlowBug: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
+  // $FlowExpectedError: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
   9: {
     code: 'SERVICE_INVALID',
     message:
       'The version of the Google Play services installed on this device is not authentic.',
   },
-  // $FlowBug: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
+  // $FlowExpectedError: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
   18: {
     code: 'SERVICE_UPDATING',
     message: 'Google Play services is currently being updated on this device.',
   },
-  // $FlowBug: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
+  // $FlowExpectedError: Doesn't like numerical object keys: https://github.com/facebook/flow/issues/380
   19: {
     code: 'SERVICE_MISSING_PERMISSION',
     message: