fcl-db: tests: cosmetic



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27647 3ad0048d-3df7-0310-abae-a5850022a9f2
* fcl-db: tests: test blobtype for blob fields; tests for mantis issue #26064



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27648 3ad0048d-3df7-0310-abae-a5850022a9f2