add bool detection when inferring type

lib/Doctrine/ORM/Query/ParameterTypeInferer.php

@@ -25,7 +25,7 @@ use Doctrine\DBAL\Types\Type;
 /**
  * Provides an enclosed support for parameter infering.
  *
- * 
+ *
  * @link    www.doctrine-project.org
  * @since   2.0
  * @author  Benjamin Eberlei <kontakt@beberlei.de>
@@ -50,6 +50,10 @@ class ParameterTypeInferer
             return Type::INTEGER;
         }
 
+        if (is_bool($value)) {
+            return Type::BOOLEAN;
+        }
+
         if ($value instanceof \DateTime) {
             return Type::DATETIME;
         }
@@ -62,4 +66,4 @@ class ParameterTypeInferer
 
         return \PDO::PARAM_STR;
     }
-}
+}