/Indices/Warmer/Get should throw exception on bad argument combination

If `index` and `type` are specified but not `name`, an exception
should be thrown sinc this is an illegal combination.  Valid
combinations are:

"/_warmer", "/{index}/_warmer", "/{index}/_warmer/{name}", "/_warmer/{name}", "/{index}/{type}/_warmer/{name}"

src/Elasticsearch/Endpoints/Indices/Warmer/Get.php

@@ -43,6 +43,7 @@ public function setName($name)
 
 
     /**
+     * @throws \Elasticsearch\Common\Exceptions\RuntimeException
      * @return string
      */
     protected function getURI()
@@ -56,6 +57,8 @@ protected function getURI()
             $uri = "/$index/$type/_warmer/$name";
         } elseif (isset($index) === true && isset($name) === true) {
             $uri = "/$index/_warmer/$name";
+        } elseif (isset($index) === true && isset($type) === true) {
+            throw new Exceptions\RuntimeException('Invalid index/type/name combination. If index + type are defined, name must also be defined');
         } elseif (isset($index) === true) {
             $uri = "/$index/_warmer";
         } elseif (isset($name) === true) {