feat(schema-compiler): Support snake_case aliases for fields

[ovr]

Hello!

Thanks

[codecov]

Codecov Report

Patch coverage: 97.05% and project coverage change: +0.04 🎉

Comparison is base (68ba8aa) 47.00% compared to head (d3d53d0) 47.04%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6396      +/-   ##
==========================================
+ Coverage   47.00%   47.04%   +0.04%     
==========================================
  Files         152      153       +1     
  Lines       20261    20275      +14     
  Branches     5193     5196       +3     
==========================================
+ Hits         9524     9539      +15     
+ Misses       9899     9898       -1     
  Partials      838      838              

Flag	Coverage Δ
cube-backend	47.04% <97.05%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...bejs-schema-compiler/src/compiler/CubeEvaluator.js	54.12% <ø> (ø)
.../compiler/transpilers/CubePropContextTranspiler.ts	98.63% <ø> (ø)
...kages/cubejs-schema-compiler/src/compiler/utils.ts	96.00% <96.00%> (ø)
...cubejs-schema-compiler/src/compiler/CubeSymbols.js	91.20% <100.00%> (+0.09%)	⬆️
...ubejs-schema-compiler/src/compiler/YamlCompiler.ts	68.70% <100.00%> (-2.55%)	⬇️

... and 1 file with indirect coverage changes

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[splatcollision]

I was wondering why some meta object property names in my cube schemas changed all of the sudden, this PR is the culprit. Had to debug front end code for a bit before realizing something had changed in the latest cube code.

I had meta objects in my schemas with snake case property names, a python habit I suppose, but IMO cube shouldn't care about what's in those objects. User expectation is that schema item meta fields should remain unchanged.

https://cube.dev/docs/schema/reference/dimensions#parameters-meta

"Custom metadata. Can be used to pass any information to the frontend."

Cheers and thanks for the great product though!

[ovr]

@splatcollision

I am sorry to hear, I've prepared PR with a fix for that - #6444

Good catch 👍

[splatcollision]

OK Thanks, reverting my front-end changes, thanks!