Misc.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59512 65644016-39b1-43b1-bf79-96bc8fe82c15
Avoid var shadowing.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59513 65644016-39b1-43b1-bf79-96bc8fe82c15
Misc.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59514 65644016-39b1-43b1-bf79-96bc8fe82c15
More sys tables protected.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59515 65644016-39b1-43b1-bf79-96bc8fe82c15