The test case innodb.foreign-keys is failing in pb2 5.5. This is because

some of the tables are created in InnoDB and some tables are created in MyISAM.
We need to create all tables on InnoDB.  Fix is to add engine=innodb to the
CREATE TABLE statements.  

approved in IM by Marko and Vasil.

mysql-test/suite/innodb/r/foreign-keys.result

@@ -5,8 +5,8 @@
 CREATE TABLE `department` (`department_id` INT, `department_people_fk` INT,
 PRIMARY KEY (`department_id`)) engine=innodb;
 CREATE TABLE `title` (`title_id` INT, `title_manager_fk` INT,
-`title_reporter_fk` INT, PRIMARY KEY (`title_id`));
-CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`));
+`title_reporter_fk` INT, PRIMARY KEY (`title_id`)) engine=innodb;
+CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`)) engine=innodb;
 ALTER TABLE `department` ADD FOREIGN KEY (`department_people_fk`) REFERENCES
 `people` (`people_id`);
 ALTER TABLE `title` ADD FOREIGN KEY (`title_manager_fk`) REFERENCES `people`

mysql-test/suite/innodb/t/foreign-keys.test

@@ -10,9 +10,9 @@ CREATE TABLE `department` (`department_id` INT, `department_people_fk` INT,
 PRIMARY KEY (`department_id`)) engine=innodb;
 
 CREATE TABLE `title` (`title_id` INT, `title_manager_fk` INT,
-`title_reporter_fk` INT, PRIMARY KEY (`title_id`));
+`title_reporter_fk` INT, PRIMARY KEY (`title_id`)) engine=innodb;
 
-CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`));
+CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`)) engine=innodb;
 
 ALTER TABLE `department` ADD FOREIGN KEY (`department_people_fk`) REFERENCES
 `people` (`people_id`);