Resolve class-node lookup inside the single-element loop instead of suppressing errors

The class branch's $files is always a single-element [$file], so the now
non-empty array inference proved the post-loop $fetchedClassNode === null check
dead and left $file as a foreach value variable that PHPStan treats as
possibly-undefined after the loop. Building the reflection inside the loop drops
the dead check and the post-loop variable use, removing both @PHPStan-Ignore
comments rather than suppressing the warnings.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: phpstan-bot

src/Reflection/BetterReflection/SourceLocator/OptimizedDirectorySourceLocator.php

@@ -111,7 +111,6 @@ public function locateIdentifier(Reflector $reflector, Identifier $identifier):
 		}
 
 		if ($identifier->isClass()) {
-			$fetchedClassNode = null;
 			foreach ($files as $file) {
 				$fetchedClassNodes = $this->fileNodesFetcher->fetchNodes($file)->getClassNodes();
 
@@ -121,17 +120,13 @@ public function locateIdentifier(Reflector $reflector, Identifier $identifier):
 
 				/** @var FetchedNode<Node\Stmt\ClassLike> $fetchedClassNode */
 				$fetchedClassNode = current($fetchedClassNodes[$identifierName]);
-			}
-
-			if ($fetchedClassNode === null) { // @phpstan-ignore identical.alwaysFalse
-				return null;
-			}
 
-			[$reflectionCacheKey, $variableCacheKey] = $this->getCacheKeys($file, $identifier); // @phpstan-ignore variable.undefined
-			$classReflection = $this->nodeToReflection($reflector, $fetchedClassNode);
-			$this->cache->save($reflectionCacheKey, $variableCacheKey, $classReflection->exportToCache());
+				[$reflectionCacheKey, $variableCacheKey] = $this->getCacheKeys($file, $identifier);
+				$classReflection = $this->nodeToReflection($reflector, $fetchedClassNode);
+				$this->cache->save($reflectionCacheKey, $variableCacheKey, $classReflection->exportToCache());
 
-			return $classReflection;
+				return $classReflection;
+			}
 		} elseif ($identifier->isFunction()) {
 			$fetchedFunctionNode = null;
 			foreach ($files as $file) {