stacktraces: fix callstack copying edgecases (Switch/Try-Catch)
(compilation-only commit)
stacktraces: fix callstack copying edgecases (Try-Retract/Finally)
(compilation-only commit)
stacktraces: fix callstack copying edgecases (Loop)
(compilation-only commit)
stacktraces: fix callstack copying edgecases (Par/Alt)
(compilation-only commit)