[lldb-dap] Improve `stackTrace` and `exceptionInfo` DAP request handlers (#105905)
Refactoring `stackTrace` to perform frame look ups in a more on-demand
fashion to improve overall performance.
Additionally adding additional information to the `exceptionInfo`
request to report exception stacks there instead of merging the
exception stack into the stack trace. The `exceptionInfo` request is
only called if a stop event occurs with `reason='exception'`, which
should mitigate the performance of `SBThread::GetCurrentException`
calls.
Adding unit tests for exception handling and stack trace supporting.
GitOrigin-RevId: 5b4100cc354148a1140546e7f5ac2bf380bc5eff
24 files changed