SynEdit: Revert changes in TSynEditKeyStrokes.FindKeycode2. Part of issue #24008

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41140 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: Handle Ctrl in sequencial combo shortcuts correctly. Part of issue #24008

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41141 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: formatting and some refactoring in KeyMapping.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41142 4005530d-fff6-0310-9dd1-cebe43e6787f