Laravel 5.6 updates

Travis config update

Removed HHVM script as Laravel no longer support HHVM after releasing 5.3

vendor/symfony/http-kernel/Controller/ArgumentResolver/ServiceValueResolver.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\HttpKernel\Controller\ArgumentResolver;
 
 use Psr\Container\ContainerInterface;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
@@ -63,6 +64,21 @@ final class ServiceValueResolver implements ArgumentValueResolverInterface
             $controller = ltrim($controller, '\\');
         }
 
-        yield $this->container->get($controller)->get($argument->getName());
+        try {
+            yield $this->container->get($controller)->get($argument->getName());
+        } catch (RuntimeException $e) {
+            $what = sprintf('argument $%s of "%s()"', $argument->getName(), $controller);
+            $message = preg_replace('/service "\.service_locator\.[^"]++"/', $what, $e->getMessage());
+
+            if ($e->getMessage() === $message) {
+                $message = sprintf('Cannot resolve %s: %s', $what, $message);
+            }
+
+            $r = new \ReflectionProperty($e, 'message');
+            $r->setAccessible(true);
+            $r->setValue($e, $message);
+
+            throw $e;
+        }
     }
 }