Merge branch '4.4'

* 4.4:
  Import return annotations from vendors
  [ErrorHandler] Handle return types in DebugClassLoader
  cs fix

Author: nicolas-grekas

GenericLinkProvider.php

@@ -61,6 +61,8 @@ public function getLinksByRel($rel): array
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withLink(LinkInterface $link)
     {
@@ -72,6 +74,8 @@ public function withLink(LinkInterface $link)
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withoutLink(LinkInterface $link)
     {

Link.php

@@ -92,6 +92,8 @@ public function getAttributes(): array
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withHref($href)
     {
@@ -104,6 +106,8 @@ public function withHref($href)
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withRel($rel)
     {
@@ -115,6 +119,8 @@ public function withRel($rel)
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withoutRel($rel)
     {
@@ -126,6 +132,8 @@ public function withoutRel($rel)
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withAttribute($attribute, $value)
     {
@@ -137,6 +145,8 @@ public function withAttribute($attribute, $value)
 
     /**
      * {@inheritdoc}
+     *
+     * @return static
      */
     public function withoutAttribute($attribute)
     {