De-duplicate isAnonymous check (#3782)

packages/NodeTypeResolver/PHPStan/Scope/PHPStanNodeScopeResolver.php

@@ -386,9 +386,10 @@ private function resolveClassOrInterfaceScope(
         bool $isScopeRefreshing
     ): MutatingScope {
         $className = $this->resolveClassName($classLike);
+        $isAnonymous = $this->classAnalyzer->isAnonymousClass($classLike);
 
         // is anonymous class? - not possible to enter it since PHPStan 0.12.33, see https://github.com/phpstan/phpstan-src/commit/e87fb0ec26f9c8552bbeef26a868b1e5d8185e91
-        if ($classLike instanceof Class_ && $this->classAnalyzer->isAnonymousClass($classLike)) {
+        if ($classLike instanceof Class_ && $isAnonymous) {
             $classReflection = $this->reflectionProvider->getAnonymousClassReflection($classLike, $mutatingScope);
         } elseif (! $this->reflectionProvider->hasClass($className)) {
             return $mutatingScope;
@@ -397,7 +398,7 @@ private function resolveClassOrInterfaceScope(
         }
 
         // on refresh, remove entered class avoid entering the class again
-        if ($isScopeRefreshing && $mutatingScope->isInClass() && ! $classReflection->isAnonymous()) {
+        if ($isScopeRefreshing && $mutatingScope->isInClass() && ! $isAnonymous) {
             $context = $this->privatesAccessor->getPrivateProperty($mutatingScope, 'context');
             $this->privatesAccessor->setPrivateProperty($context, 'classReflection', null);
         }