Make integer coercions match number

Author: erayd

src/JsonSchema/Constraints/TypeConstraint.php

@@ -269,7 +269,8 @@ protected function toNumber($value)
 
     protected function toInteger($value)
     {
-        if (is_numeric($value) && (int) $value == $value) {
+        $numberValue = $this->toNumber($value);
+        if ((int) $numberValue == $numberValue) {
             return (int) $value; // cast to number
         }