Fix return type Result::getFacetSet() (#591)

Fix return type Result::getFacetSet()

CHANGELOG.md

@@ -4,6 +4,20 @@ All notable changes to the solarium library will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Added
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+### Security
+
+
 ## [4.0.0]
 ### Added
 - Support "sow" parameter (Split On Whitespace) in select queries

src/QueryType/Select/Result/Result.php

@@ -3,8 +3,8 @@
 namespace Solarium\QueryType\Select\Result;
 
 use Solarium\Component\ComponentAwareQueryInterface;
+use Solarium\Component\FacetSet;
 use Solarium\Component\Result\Debug\Result as DebugResult;
-use Solarium\Component\Result\Facet\Field;
 use Solarium\Component\Result\Grouping\Result as GroupingResult;
 use Solarium\Component\Result\Highlighting\Highlighting;
 use Solarium\Component\Result\MoreLikeThis\Result as MoreLikeThisResult;
@@ -272,7 +272,7 @@ class Result extends BaseResult implements \IteratorAggregate, \Countable
      *
      * This is a convenience method that maps presets to getComponent
      *
-     * @return Field[]|null
+     * @return FacetSet|null
      */
     public function getFacetSet()
     {