[2.0] Changed structure of creation of SqlWalkers in DQL Parser. They are now strings instead of instances of dummy classes. Implemented nesting level check for ResultVariable
[2.0] Changed structure of creation of SqlWalkers in DQL Parser. They are now strings instead of instances of dummy classes. Implemented nesting level check for ResultVariable

git-svn-id: c8c49e1140e1cd2a8fb163f3c2b0f6eec231a71d@6199 625475ce-881a-0410-a577-b389adb331d8

bkw/doctrine