Compatibility with recent PHPUnit

Author: David Prévot

tests/unit/TypeResolverTest.php

@@ -37,7 +37,7 @@ class TypeResolverTest extends TestCase
      *
      * @phpcsSuppress SlevomatCodingStandard.TypeHints.TypeHintDeclaration.MissingReturnTypeHint
      */
-    public function tearDown()
+    public function tearDown() : void
     {
         m::close();
     }

tests/unit/Types/ContextFactoryTest.php

@@ -192,7 +192,7 @@ public function assertNamespaceAliasesFrom(Context $context)
             $this->assertSame($expected, $actual);
         }
 
-        public function tearDown()
+        public function tearDown() : void
         {
             m::close();
         }