test: add ts eval snapshots

[marco-ippolito]

Some light refactoring and printing error message from --eval with ts

[nodejs-github-bot]

Review requested:

• @nodejs/loaders

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.56%. Comparing base (da3f388) to head (0986177).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #56358      +/-   ##
==========================================
+ Coverage   88.54%   88.56%   +0.01%     
==========================================
  Files         657      657              
  Lines      190655   190636      -19     
  Branches    36582    36585       +3     
==========================================
+ Hits       168824   168834      +10     
+ Misses      15008    14988      -20     
+ Partials     6823     6814       -9     

Files with missing lines	Coverage Δ
lib/internal/process/execution.js	99.17% <100.00%> (+1.35%)	⬆️

... and 38 files with indirect coverage changes