Feature Request: Allow @WithSpan to start a new Trace and create a span link to the original Trace

Is your feature request related to a problem? Please describe.

When we have a big operation producing a huge trace, we sometimes would like to decouple some operations into a separate trace by using WithSpan(inheritContext = false ). However, we still want to refer to the trace that caused it.

Describe the solution you'd like

I would like to propose WithSpan(inheritContext = false, addPreviousSpanAsLink = true). When inheritContext == true, then addPreviousSpanAsLink is ignored.

Describe alternatives you've considered

Right now, we do need to manually create spans just to add span links.

Additional context

No response

Tip

_{React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it. Learn more here.}

Start by locating the @WithSpan annotation and the handling of inheritContext. Trace how a new trace is started and how span links are currently created, then determine the affected tests or entry points. Done means the proposed addPreviousSpanAsLink option links the original span only when inheritContext is false, while the existing behavior remains unchanged otherwise.