Missing support for "diagnostics" option when using McXtrace?

[willend]

Hi there,

I experimented with McStasScript + McXtrace wanting to look at the stat losses throughout an instrument, but it seems this is currently not available:

I will experiment with a little "monkey-patching" the hardcoded restore_neutron -> restore_xray in the code and see where that gets us.

[willend]

Yup, this helps/works.

I might add a PR later that introduces a switch in the right spot.

(P.s.: The high jump toward the end makes sense - a SPLIT has been inserted...)