FT-300 Fix an issue where `free' calls on blocks created during create_from_blockpairs would crash the replay. Also fix parsing bugs.
FT-300 Fix an issue where `free' calls on blocks created during
create_from_blockpairs would crash the replay. Also fix parsing bugs.

natsys/mariadb_10.2,ottok/PerconaFT,ollie314/server,davidl-zend/zenddbi,kuszmaul/PerconaFT,davidl-zend/zenddbi,natsys/mariadb_10.2,natsys/mariadb_10.2,BohuTANG/ft-index,ollie314/server,ollie314/server,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,kuszmaul/PerconaFT,BohuTANG/ft-index,davidl-zend/zenddbi,davidl-zend/zenddbi,percona/PerconaFT,ollie314/server,ottok/PerconaFT,davidl-zend/zenddbi,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,kuszmaul/PerconaFT-tmp,kuszmaul/PerconaFT-tmp,davidl-zend/zenddbi,percona/PerconaFT,ollie314/server,flynn1973/mariadb-aix,davidl-zend/zenddbi,ollie314/server,flynn1973/mariadb-aix,flynn1973/mariadb-aix,davidl-zend/zenddbi,BohuTANG/ft-index,natsys/mariadb_10.2,ollie314/server,kuszmaul/PerconaFT,kuszmaul/PerconaFT-tmp,flynn1973/mariadb-aix,flynn1973/mariadb-aix,natsys/mariadb_10.2,ollie314/server,kuszmaul/PerconaFT-tmp,slanterns/server,ottok/PerconaFT,ottok/PerconaFT,kuszmaul/PerconaFT,percona/PerconaFT,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,natsys/mariadb_10.2,BohuTANG/ft-index,ollie314/server,natsys/mariadb_10.2,percona/PerconaFT