Fix trait detection recursion

src/Type/FileTypeMapper.php

@@ -180,7 +180,7 @@ private function resolvePhpDocStringToDocNode(string $phpDocString): PhpDocNode
 	private function getNameScopeMap(string $fileName): array
 	{
 		if (!isset($this->memoryCache[$fileName])) {
-			$cacheKey = sprintf('%s-phpdocstring-v21-explicit-mixed', $fileName);
+			$cacheKey = sprintf('%s-phpdocstring-v22-trait-bug', $fileName);
 			$variableCacheKey = sprintf('%s-%s', implode(',', array_map(static fn (array $file): string => sprintf('%s-%d', $file['filename'], $file['modifiedTime']), $this->getCachedDependentFilesWithTimestamps($fileName))), $this->phpVersion->getVersionString());
 			$map = $this->cache->load($cacheKey, $variableCacheKey);
 
@@ -291,6 +291,9 @@ function (Node $node) use ($fileName, $lookForTrait, &$traitFound, $traitMethodA
 						} elseif ((bool) $node->getAttribute('anonymousClass', false)) {
 							$className = $node->name->name;
 						} else {
+							if ($traitFound) {
+								return self::SKIP_NODE;
+							}
 							$className = ltrim(sprintf('%s\\%s', $namespace, $node->name->name), '\\');
 						}
 						$classStack[] = $className;

tests/PHPStan/Analyser/AnalyserIntegrationTest.php

@@ -563,6 +563,12 @@ public function testBug6212(): void
 		$this->assertNoErrors($errors);
 	}
 
+	public function testBug6740(): void
+	{
+		$errors = $this->runAnalyse(__DIR__ . '/data/bug-6740-b.php');
+		$this->assertNoErrors($errors);
+	}
+
 	/**
 	 * @param string[]|null $allAnalysedFiles
 	 * @return Error[]

tests/PHPStan/Analyser/data/bug-6740-a.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Bug6740;
+
+trait BlockTemplate
+{
+	public function __construct()
+	{
+		parent::__construct();
+
+		$this->StdClassSetup(get_class());
+	}
+}
+
+class A
+{
+	/** @var string[] */
+
+	private $classList = [];
+
+	/**
+	 * @returns $this
+	 */
+
+	public function __construct()
+	{
+	}
+
+	/**
+	 * Apply all the standard configuration needs for a sub-class
+	 *
+	 * @param string $baseClass
+	 */
+
+	public function StdClassSetup($baseClass): void
+	{
+		$this->classList[] = $baseClass;
+	}
+
+	/**
+	 * @return string[]
+	 */
+
+	public function GetClassList()
+	{
+		return $this->classList;
+	}
+}
+
+class Box extends A
+{
+	use BlockTemplate;
+}

tests/PHPStan/Analyser/data/bug-6740-b.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Bug6740;
+
+class B extends A
+{
+	use BlockTemplate;
+}