Fix compatibility with dev rlang

[krlmlr]

CC @lionel-: I'll keep the existing code for compatibility with CRAN rlang. Do you still plan to submit rlang tomorrow?

[codecov-commenter]

Codecov Report

Merging #50 (9ac0685) into main (fa2a115) will decrease coverage by 13.78%.
The diff coverage is 4.76%.

@@             Coverage Diff             @@
##             main      #50       +/-   ##
===========================================
- Coverage   85.57%   71.78%   -13.79%     
===========================================
  Files          13       13               
  Lines         201      241       +40     
===========================================
+ Hits          172      173        +1     
- Misses         29       68       +39     

Impacted Files	Coverage Δ
R/add_trace_back.R	60.15% <4.76%> (-26.21%)	⬇️

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[lionel-]

Thanks! No rush, I think we'll have to figure out dplyr errors before releasing rlang

[krlmlr]

Thanks. Do you agree with the formatting (printed and internal)? https://github.com/r-prof/winch/pull/50/files#diff-7b00dfdfc2c5031e20f4203b00fa8e5b23417ef687b65cd353737b584a29e8ef

[lionel-]

It's fine for now. We might add another column later on to specify the context (reticulate, winch, ...).

Could you perhaps no longer rely on the version attribute? I'd rather not keep it around. Removing it in a future release would also be fine.