Allow passing an associative array of query vars to avoid parse_str overhead.

git-svn-id: http://svn.automattic.com/wordpress/trunk@4128 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/query.php

@@ -334,7 +334,10 @@ class WP_Query {
 	function parse_query ($query) {
 		if ( !empty($query) || !isset($this->query) ) {
 			$this->init();
-			parse_str($query, $qv);
+			if ( is_array($query) )
+				$qv = & $query;
+			else
+				parse_str($query, $qv);
 			$this->query = $query;
 			$this->query_vars = $qv;
 		}