Function miri::diagnostics::prune_stacktrace

fn prune_stacktrace<'mir, 'tcx>(
    ecx: &InterpCx<'mir, 'tcx, Evaluator<'mir, 'tcx>>,
    stacktrace: Vec<FrameInfo<'tcx>>
) -> (Vec<FrameInfo<'tcx>>, bool)

Attempts to prune a stacktrace to omit the Rust runtime, and returns a bool indicating if any frames were pruned. If the stacktrace does not have any local frames, we conclude that it must be pointing to a problem in the Rust runtime itself, and do not prune it at all.