IDE: Rename a variable in TGroupedMatrixValue to avoid confusion with another variable of type TGroupedMatrixModes

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42034 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: Hide build modes in "Additions and Overrides" when UseBuildModes=False.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42035 4005530d-fff6-0310-9dd1-cebe43e6787f