[BUGFIX] Fix fatal error in QueryInterfaceDynamicReturnTypeExtension

In some rare cases (only in combination with rector?) the
QueryInterfaceDynamicReturnTypeExtension failed with an exception
as it has been tried to convert a Repository name to a model name
even if the QueryInterface was not used in a Repository.
It is checked if we're in the scope of a repository and if not
we use a mixed type as we could not find out which type exactly
it is.

Author: sascha-egerer

src/Type/QueryInterfaceDynamicReturnTypeExtension.php

@@ -11,11 +11,13 @@
 use PHPStan\Type\ErrorType;
 use PHPStan\Type\Generic\GenericObjectType;
 use PHPStan\Type\IntegerType;
+use PHPStan\Type\MixedType;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\Type;
 use SaschaEgerer\PhpstanTypo3\Helpers\Typo3ClassNamingUtilityTrait;
 use TYPO3\CMS\Extbase\Persistence\Generic\QueryResult;
 use TYPO3\CMS\Extbase\Persistence\QueryInterface;
+use TYPO3\CMS\Extbase\Persistence\Repository;
 
 class QueryInterfaceDynamicReturnTypeExtension implements DynamicMethodReturnTypeExtension
 {
@@ -51,12 +53,15 @@ public function getTypeFromMethodCall(
 			if ($classReflection === null) {
 				return new ErrorType();
 			}
+			$modelType = [new MixedType()];
 
-			$modelName = $this->translateRepositoryNameToModelName(
-				$classReflection->getName()
-			);
+			if ($classReflection->isSubclassOf(Repository::class)) {
+				$modelName = $this->translateRepositoryNameToModelName(
+					$classReflection->getName()
+				);
 
-			$modelType = [new ObjectType($modelName)];
+				$modelType = [new ObjectType($modelName)];
+			}
 		}
 
 		if ($argument !== null) {