MDEV-4786 - merge 10.0-monty - 10.0

Fixed parts.partition_alter1_1_2_innodb, parts.partition_alter1_2_innodb,
parts.partition_alter2_1_1_innodb, parts.partition_alter2_1_2_innodb,
parts.partition_alter2_2_1_innodb, parts.partition_alter2_2_2_innodb,
parts.partition_alter4_innodb failures.

mysql-test/suite/parts/r/partition_alter1_1_2_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa
mysql-test/suite/parts/r/partition_alter1_2_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa
mysql-test/suite/parts/r/partition_alter2_1_1_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa
mysql-test/suite/parts/r/partition_alter2_1_2_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa
mysql-test/suite/parts/r/partition_alter2_2_1_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa
mysql-test/suite/parts/r/partition_alter2_2_2_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa
mysql-test/suite/parts/r/partition_alter4_innodb.result:
  Reverted some changes to test case as InnoDB doesn't support
  REPAIR TABLE and we didn't merge the following revision, which
  implements REPAIR TABLE for partitioning:
  mattias.jonsson@oracle.com-20130130165152-o4tivhs5ty6n6nqa