SlevomatCodingStandard.TypeHints.ReturnTypeHint: Type alias should not be reported as "missing traversable type hint specification"

Author: kukulich

SlevomatCodingStandard/Sniffs/TypeHints/ReturnTypeHintSniff.php

@@ -449,6 +449,10 @@ private function checkFunctionTraversableTypeHintSpecification(
 
 		$returnTypeNode = $this->getReturnTypeNode($returnAnnotation);
 
+		if (TypeHintHelper::isTypeDefinedInAnnotation($phpcsFile, $functionPointer, (string) $returnTypeNode)) {
+			return;
+		}
+
 		if (
 			!$hasTraversableTypeHint
 			&& !AnnotationTypeHelper::containsTraversableType(

tests/Sniffs/TypeHints/data/returnTypeHintNoErrors.php

@@ -317,4 +317,11 @@ public function withAlias3()
 	{
 	}
 
+	/**
+	 * @return SomeAlias3
+	 */
+	public function withArrayAlias(): array
+	{
+	}
+
 }