Fix FileTypeMapper call in MethodTemplateTypeRule

Author: ondrejmirtes

src/Rules/Generics/MethodTemplateTypeRule.php

@@ -54,7 +54,7 @@ public function processNode(Node $node, Scope $scope): array
 		$methodName = $node->name->toString();
 		$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
 			$scope->getFile(),
-			$className,
+			$classReflection->getName(),
 			$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
 			$methodName,
 			$docComment->getText(),

src/Type/FileTypeMapper.php

@@ -38,6 +38,7 @@
 use function ltrim;
 use function md5;
 use function sprintf;
+use function strpos;
 use function strtolower;
 use function time;
 use function trait_exists;
@@ -628,6 +629,10 @@ private function getNameScopeKey(
 			return md5(sprintf('%s', $file));
 		}
 
+		if ($class !== null && strpos($class, 'class@anonymous') !== false) {
+			throw new ShouldNotHappenException('Wrong anonymous class name, FilTypeMapper should be called with ClassReflection::getName().');
+		}
+
 		return md5(sprintf('%s-%s-%s-%s', $file, $class, $trait, $function));
 	}