Ensure that at most one instance of the CDBEngine is alive.
Prevent inconsistent debugger states if several sessions are started.
Squashed cherry-picked commits from master correcting the
plugin state handling (2efdeb5cd0,
57f7616286).
Reviewed-by: hjk
Task-number: QTCREATORBUG-2894
(cherry picked from commit 5a5ba58dc9)
setError() on them instead (should there be any from
a session mixup). Give the session engine watcher
capabilities and ensure 'Remove watch item' is enabled
for the session engine by checking the debugger state.
Reviewed-by: hjk
assignValueInDebugger: Pass on WatchData as well, pass
on values as QVariant. Based on that, do more extensive
checks in CDB, preventing assignment of non-PODs.
Locals/Watch editing:
* Disable while running
* Edit pointer values as hex with validation.
CDB: Strip class types off reported pointer values and reformat
the values as short 0x-pointer values, introduce flag to
WatchData::source to do dumper expansion handling.
Windows: recognize int64 as int.
Register handler: Fix accessing uninitialized value.
Make address a quint64. Enable DisassemblerViewAgent
to match the disassembly-addresses by converting the numbers,
making it more robust. Remove the complicated formatting needed
for CDB.
...which subclasses DebuggerRunner and does not call
DebuggerPlugin::startDebugger(), which connects the
engine, leading to strange malfunctions. Move functionality
to DebuggerRunner::start() to make it self-contained.
Add object names to engines for easier debugging.
Reviewed-by: hjk
