Fix printer linter issues

Author: SerafimArts

libs/printer/src/NativeTypePrinter.php

@@ -109,6 +109,7 @@ protected function printTypeListNode(TypesListNode $node): string
     #[\Override]
     protected function printTernaryType(TernaryExpressionNode $node): string
     {
+        /** @var non-empty-string */
         return $this->make(new UnionTypeNode($node->then, $node->else));
     }
 

libs/printer/src/PrettyPrinter.php

@@ -356,6 +356,7 @@ protected function printTemplateArgumentsNode(TemplateArgumentListNode $argument
      */
     protected function printTemplateArgumentNode(TemplateArgumentNode $argument): string
     {
+        /** @var non-empty-string $result */
         $result = $this->make($argument->value);
 
         if ($argument->hint !== null) {
@@ -372,7 +373,7 @@ protected function printClassConstNode(ClassConstNode $node): string
     {
         return \vsprintf('%s::%s', [
             $node->class->toString(),
-            (string) $node->constant?->toString(),
+            $node->constant->toString(),
         ]);
     }
 
@@ -436,6 +437,7 @@ protected function printCallableArgumentNode(CallableParameterNode $node): strin
         $result = 'mixed';
 
         if ($node->type !== null) {
+            /** @var non-empty-string $result */
             $result = $this->make($node->type);
         }
 
@@ -494,7 +496,7 @@ class: LogicalTypeNode::class,
             nodes: [$type],
         );
 
-        return $visitor->isFound();
+        return $visitor->isFound;
     }
 
     /**

libs/printer/src/Printer.php

@@ -47,9 +47,6 @@ public function print(TypeNode $stmt): string
         return $this->make($stmt);
     }
 
-    /**
-     * @return non-empty-string
-     */
     abstract protected function make(TypeNode $stmt): string;
 
     /**