Improve performance - don't loop over everything if already valid

Author: erayd

src/JsonSchema/Constraints/TypeConstraint.php

@@ -82,6 +82,11 @@ public function check(&$value = null, $schema = null, JsonPointer $path = null,
     protected function validateTypesArray(&$value, array $type, &$validTypesWording, &$isValid, $path)
     {
         foreach ($type as $tp) {
+            // already valid, so no need to waste cycles looping over everything
+            if ($isValid) {
+                return;
+            }
+
             // $tp can be an object, if it's a schema instead of a simple type, validate it
             // with a new type constraint
             if (is_object($tp)) {