Allow trailing commas in error_node_position and in error_position macros

[GuillaumeGomez]

It's quite nice when having arguments on different lines to have each line end with a comma.

[codspeed-hq]

CodSpeed Performance Report

Merging #1711 will improve performances by 10.71%

_{Comparing GuillaumeGomez:trailing-comma (7b47f77) with main (996efb8)}

Summary

⚡ 1 improvements
✅ 23 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	GuillaumeGomez:trailing-comma	Change
⚡	number	287.2 ns	259.4 ns	+10.71%

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.43%. Comparing base (996efb8) to head (7b47f77).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1711      +/-   ##
==========================================
- Coverage   61.47%   61.43%   -0.04%     
==========================================
  Files          24       24              
  Lines        2951     2951              
==========================================
- Hits         1814     1813       -1     
- Misses       1137     1138       +1     

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