ReactThenable-test -> ReactUse-test

Just a rename. Scope of this test file has expanded.

Author: acdlite

…iler/src/__tests__/ReactThenable-test.js …econciler/src/__tests__/ReactUse-test.jspackages/react-reconciler/src/__tests__/ReactThenable-test.js renamed to packages/react-reconciler/src/__tests__/ReactUse-test.js packages/react-reconciler/src/__tests__/ReactThenable-test.js renamed to packages/react-reconciler/src/__tests__/ReactUse-test.js

@@ -11,7 +11,7 @@ let Suspense;
 let startTransition;
 let pendingTextRequests;
 
-describe('ReactThenable', () => {
+describe('ReactUse', () => {
   beforeEach(() => {
     jest.resetModules();