Upgrade flow in fbsource (#58655)

Summary:
Pull Request resolved: #58655

X-link: react/metro#1964

Changelog: [Internal]

Reviewed By: gkz

Differential Revision: D121416054

fbshipit-source-id: 451ecdfea111919e24bdbd274d00622bb66b50bc

Author: SamChou19815

packages/react-native/Libraries/Blob/URLSearchParams.js

@@ -78,12 +78,14 @@ export class URLSearchParams {
     this._searchParams.set(name, [value]);
   }
 
-  keys(): Iterator<string> {
+  keys(): IteratorObject<string> {
     return this._searchParams.keys();
   }
 
-  values(): Iterator<string> {
-    function* generateValues(params: Map<string, string[]>): Iterator<string> {
+  values(): IteratorObject<string> {
+    function* generateValues(
+      params: Map<string, string[]>,
+    ): IteratorObject<string> {
       for (const valueArray of params.values()) {
         for (const value of valueArray) {
           yield value;
@@ -96,7 +98,7 @@ export class URLSearchParams {
   entries(): Iterator<[string, string]> {
     function* generateEntries(
       params: Map<string, string[]>,
-    ): Iterator<[string, string]> {
+    ): IteratorObject<[string, string]> {
       for (const [key, values] of params) {
         for (const value of values) {
           yield [key, value];
@@ -124,7 +126,7 @@ export class URLSearchParams {
   }
 
   // $FlowFixMe[unsupported-syntax]
-  [Symbol.iterator](): Iterator<[string, string]> {
+  [Symbol.iterator](): IteratorObject<[string, string]> {
     const entries: [string, string][] = [];
 
     for (const [key, values] of this._searchParams) {

packages/react-native/Libraries/Blob/URLSearchParams.js.flow

@@ -21,9 +21,9 @@ declare export class URLSearchParams {
   has(name: string): boolean;
   set(name: string, value: string): void;
   sort(): void;
-  @@iterator(): Iterator<[string, string]>;
+  @@iterator(): IteratorObject<[string, string]>;
   toString(): string;
-  keys(): Iterator<string>;
-  values(): Iterator<string>;
-  entries(): Iterator<[string, string]>;
+  keys(): IteratorObject<string>;
+  values(): IteratorObject<string>;
+  entries(): IteratorObject<[string, string]>;
 }