Fixed problem with SHOW GENERATOR after SET GENERATOR became DDL.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59263 65644016-39b1-43b1-bf79-96bc8fe82c15
Fixed restore of sh_test.gbk in TCS.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59264 65644016-39b1-43b1-bf79-96bc8fe82c15