Moved some non-public builtins from module Debug to Ozcar internals; Added Thread.{taskStack,frameVariables,location}; Stack output in Error.oz adapted to new format of thread task stacks; Added new exception `kernel(block T)' to Error.oz, which is raised    when a thread blocks that has the 'raiseOnBlock' flag set; Added Type.ask.'thread' and Type.is.'thread'; Removed `waitForArbiter`; Builtin "shutdown" now is unary (argument is the exit status code),    as is procedure `Exit'.
Moved some non-public builtins from module Debug to Ozcar internals;
Added Thread.{taskStack,frameVariables,location};
Stack output in Error.oz adapted to new format of thread task stacks;
Added new exception `kernel(block T)' to Error.oz, which is raised
   when a thread blocks that has the 'raiseOnBlock' flag set;
Added Type.ask.'thread' and Type.is.'thread';
Removed `waitForArbiter`;
Builtin "shutdown" now is unary (argument is the exit status code),
   as is procedure `Exit'.



dianacgr/mozart2,mozart/mozart2,mozart/mozart2,yjaradin/mozart2,mozart/mozart2,eregon/mozart-graal,layus/mozart2,layus/mozart2,Angeldude/mozart2,eregon/mozart-graal,avisparesearch/Mozart2,mistasse/mozart-graal,eregon/mozart2,eregon/mozart-graal,eregon/mozart-graal,layus/mozart2,Angeldude/mozart2,eregon/mozart2,mistasse/mozart-graal,eregon/mozart-graal,dianacgr/mozart2,mistasse/mozart-graal,avisparesearch/Mozart2,eregon/mozart-graal,eregon/mozart2,mistasse/mozart-graal,yjaradin/mozart2,dianacgr/mozart2,Angeldude/mozart2,yjaradin/mozart2,mistasse/mozart-graal