[AutoImport] Skip auto import conflict aliased on no namespace (#6266)

* [AutoImport] Skip auto import conflict aliased on no namespace

* Fixed 🎉

* cs fix

* cs fix

Author: samsonasik

rules/CodingStyle/ClassNameImport/AliasUsesResolver.php

@@ -10,6 +10,7 @@
 use PhpParser\Node\Stmt\Namespace_;
 use PhpParser\Node\Stmt\Use_;
 use PhpParser\Node\Stmt\UseUse;
+use Rector\PhpParser\Node\CustomNode\FileWithoutNamespace;
 
 final readonly class AliasUsesResolver
 {
@@ -24,9 +25,12 @@ public function __construct(
      */
     public function resolveFromNode(Node $node, array $stmts): array
     {
-        if (! $node instanceof Namespace_) {
-            /** @var Namespace_[] $namespaces */
-            $namespaces = array_filter($stmts, static fn (Stmt $stmt): bool => $stmt instanceof Namespace_);
+        if (! $node instanceof Namespace_ && ! $node instanceof FileWithoutNamespace) {
+            /** @var Namespace_[]|FileWithoutNamespace[] $namespaces */
+            $namespaces = array_filter(
+                $stmts,
+                static fn (Stmt $stmt): bool => $stmt instanceof Namespace_ || $stmt instanceof FileWithoutNamespace
+            );
             if (count($namespaces) !== 1) {
                 return [];
             }

rules/Naming/Naming/UseImportsResolver.php

@@ -71,23 +71,17 @@ private function resolveNamespace(): Namespace_|FileWithoutNamespace|null
             return null;
         }
 
-        $namespaces = array_filter($newStmts, static fn (Stmt $stmt): bool => $stmt instanceof Namespace_);
+        /** @var Namespace_[]|FileWithoutNamespace[] $namespaces */
+        $namespaces = array_filter(
+            $newStmts,
+            static fn (Stmt $stmt): bool => $stmt instanceof Namespace_ || $stmt instanceof FileWithoutNamespace
+        );
 
         // multiple namespaces is not supported
-        if (count($namespaces) > 1) {
-            return null;
-        }
-
-        $currentNamespace = current($namespaces);
-        if ($currentNamespace instanceof Namespace_) {
-            return $currentNamespace;
-        }
-
-        $currentStmt = current($newStmts);
-        if (! $currentStmt instanceof FileWithoutNamespace) {
+        if (count($namespaces) !== 1) {
             return null;
         }
 
-        return $currentStmt;
+        return current($namespaces);
     }
 }

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

@@ -0,0 +1,15 @@
+<?php
+
+use Some\Class_ as ClassOrig;
+use PhpParser\Node;
+
+final class SkipConflictLastNameAliasedUsed
+{
+    /**
+     * @param Node\Stmt\Class_ $param
+     */
+    public function run($param): void
+    {
+        new ClassOrig();
+    }
+}