Fixed deprecated PHP 7.4 code

Author: GrahamCampbell

src/CommandTrait.php

@@ -48,6 +48,6 @@ public function testHandlerCanBeResolved()
         $params = (new ReflectionClass($handler))->getMethod('handle')->getParameters();
         $this->assertCount(1, $params);
         $this->assertFalse($params[0]->getType()->allowsNull());
-        $this->assertTrue(get_class($command) === (string) $params[0]->getType());
+        $this->assertTrue(get_class($command) === $params[0]->getType()->getName());
     }
 }

src/EventTrait.php

@@ -81,7 +81,7 @@ public function testEventHasRegisteredHandlers()
             $params = (new ReflectionClass($handler))->getMethod('handle')->getParameters();
             $this->assertCount(1, $params, "Expected '{$handler}::handle' to require exactly 1 argument.");
             $this->assertFalse($params[0]->getType()->allowsNull(), "Expected '{$handler}::handle' to require non-null arguments.");
-            $type = (string) $params[0]->getType();
+            $type = $params[0]->getType()->getName();
             $this->assertTrue($class === $type || (new ReflectionClass($class))->isSubclassOf($type), "Expected '{$class}' to equal or subtype '{$type}' in '{$handler}::handle'.");
         }
     }