Fix

Author: ondrejmirtes

src/Type/Generic/TemplateTypeVariance.php

@@ -6,6 +6,7 @@
 use PHPStan\ShouldNotHappenException;
 use PHPStan\TrinaryLogic;
 use PHPStan\Type\BenevolentUnionType;
+use PHPStan\Type\IsSuperTypeOfResult;
 use PHPStan\Type\MixedType;
 use PHPStan\Type\NeverType;
 use PHPStan\Type\Type;