[PostRector] Handle with FQCN docblock on UnusedImportRemovingPostRec…

…tor (#6722)

* [PostRector] Handle with FQCN docblock on UnusedImportRemovingPostRector

* [PostRector] Handle with FQCN docblock on UnusedImportRemovingPostRector

* rollback

* Fix

rules-tests/Renaming/Rector/Name/RenameClassRector/Fixture/docblock_aliased_name.php.inc

@@ -13,8 +13,6 @@ $var = get();
 
 namespace Rector\Tests\Renaming\Rector\Name\RenameClassRector\Fixture;
 
-use Rector\Tests\Renaming\Rector\Name\RenameClassRector\Source\OldClass as OldSomeClass;
-
 /** @var \Rector\Tests\Renaming\Rector\Name\RenameClassRector\Source\NewClass $var */
 $var = get();
 

rules-tests/Renaming/Rector/Name/RenameClassRector/Fixture/docblock_aliased_subname.php.inc

@@ -13,8 +13,6 @@ $var = get();
 
 namespace Rector\Tests\Renaming\Rector\Name\RenameClassRector\Fixture;
 
-use Rector\Tests\Renaming\Rector\Name\RenameClassRector\Source as SomeSource;
-
 /** @var \Rector\Tests\Renaming\Rector\Name\RenameClassRector\Source\NewClass $var */
 $var = get();
 

src/PostRector/Rector/UnusedImportRemovingPostRector.php

@@ -212,6 +212,10 @@ private function isUseImportUsed(
 
         // match partial import
         foreach ($names as $name) {
+            if (str_starts_with($name, '\\')) {
+                continue;
+            }
+
             if ($this->isSubNamespace($name, $comparedName, $namespacedPrefix)) {
                 return true;
             }

tests/Issues/NamespacedUse/Fixture/with_fqcn_docblock.php.inc

@@ -0,0 +1,33 @@
+<?php
+
+namespace Test;
+
+use OtherClass;
+
+class MyClass
+{
+    /**
+     * @param \ThirdClass $user
+     */
+    public function __construct($user)
+    {
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Test;
+
+class MyClass
+{
+    /**
+     * @param \ThirdClass $user
+     */
+    public function __construct($user)
+    {
+    }
+}
+
+?>