Allow nullable children of MaskedArray

[gatesn]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #5603 will degrade performances by 12.46%

_{Comparing ngates/allow-non-null-mask-child (3bbfa4b) with develop (168982b)}

Summary

❌ 2 regressions
✅ 1156 untouched
⏩ 617 skipped¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	bench_many_nulls[0.5]	322.7 µs	359.2 µs	-10.15%
❌	bench_many_nulls[0.9]	461.6 µs	527.3 µs	-12.46%

Footnotes

1. 617 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[codecov]

Codecov Report

❌ Patch coverage is 97.50000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 84.62%. Comparing base (168982b) to head (3bbfa4b).

Files with missing lines	Patch %	Lines
vortex-array/src/arrays/masked/vtable/mod.rs	91.66%	1 Missing ⚠️

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[joseph-isaacs]

should we rename this to way it doesn't include the mask?

[joseph-isaacs]

I see why this makes more sense for the build, but I would think that you want child nullability?