Stan> the dwarf2_tracepoint_var_ref code to compile to bytecodes, and
Stan> human-readable description in locexpr_describe_location_1.
Stan> (Yes it's onerous, but we did want to revive tracepoints, right?)
Tom> I will update locexpr_describe_location_1.
I am actually just going to commit what I have, because it definitely
improves the situation, and then work on the remaining pieces as
separate patches. I did not see a clean way to make
locexpr_describe_location_1 nicer, so I am going to rewrite it as
discussed elsewhere in the thread.