Fixed CORE-4158 - LIKE with escape doesn't work.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@58447 65644016-39b1-43b1-bf79-96bc8fe82c15
Fixed the page cache stats not being reported (CORE-4159).

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@58448 65644016-39b1-43b1-bf79-96bc8fe82c15
Fixed the negative/too-big numbers in the memory stats (CORE-4159).

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@58449 65644016-39b1-43b1-bf79-96bc8fe82c15