ENGCOM-1998: FIX for apparently random API failures while using array types #16137

 - Merge Pull Request #16137 from phoenix128/magento2:issue-webapi-with-cr-lf-failing
 - Merged commits:
   1. 4205403

Author: magento-engcom-team

lib/internal/Magento/Framework/Reflection/TypeProcessor.php

@@ -523,7 +523,7 @@ public function getParamType(ParameterReflection $param)
         if ($type == 'array') {
             // try to determine class, if it's array of objects
             $docBlock = $param->getDeclaringFunction()->getDocBlock();
-            $pattern = "/\@param\s+([\w\\\_]+\[\])\s+\\\${$param->getName()}\n/";
+            $pattern = "/\@param\s+([\w\\\_]+\[\])\s+\\\${$param->getName()}[\n\r]/";
             $matches = [];
             if (preg_match($pattern, $docBlock->getContents(), $matches)) {
                 return $matches[1];