[AutoImport] Skip case insensitive conflict defined class name on $re…

…ctorConfig->importNames() (#5076)

* [AutoImport] Skip case insensitive defined class name on $rectorConfig->importNames()

* Fixed 🎉

rules/CodingStyle/ClassNameImport/ShortNameResolver.php

@@ -19,6 +19,7 @@
 use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
 use Rector\CodingStyle\NodeAnalyzer\UseImportNameMatcher;
 use Rector\Core\PhpParser\Node\BetterNodeFinder;
+use Rector\Core\PhpParser\Node\CustomNode\FileWithoutNamespace;
 use Rector\Core\Util\StringUtils;
 use Rector\Core\ValueObject\Application\File;
 use Rector\NodeNameResolver\NodeNameResolver;
@@ -79,7 +80,7 @@ public function resolveShortClassLikeNames(File $file): array
         $newStmts = $file->getNewStmts();
 
         /** @var Namespace_[] $namespaces */
-        $namespaces = array_filter($newStmts, static fn (Stmt $stmt): bool => $stmt instanceof Namespace_);
+        $namespaces = array_filter($newStmts, static fn (Stmt $stmt): bool => $stmt instanceof Namespace_ || $stmt instanceof FileWithoutNamespace);
         if (count($namespaces) !== 1) {
             // only handle single namespace nodes
             return [];

tests/Issues/AutoImport/Fixture/skip_conflict_case_insensitive_class_name.php.inc

@@ -0,0 +1,9 @@
+<?php
+
+class Bar
+{
+	public static function execute()
+    {
+    	echo strtolower(\Foo\BaR::execute());
+    }
+}