Debugger: More TGDBInstructionQueue / handle internal error

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42443 4005530d-fff6-0310-9dd1-cebe43e6787f
Debugger: update thread id

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42444 4005530d-fff6-0310-9dd1-cebe43e6787f