ARROW-6132: [Python] validate result in ListArray.from_arrays

[jorisvandenbossche]

https://issues.apache.org/jira/browse/ARROW-6132

[jorisvandenbossche]

As noted on the issue, I could also add a safe=True/False keyword similarly to DictionaryArray.from_arrays.

[codecov-io]

Codecov Report

Merging #5029 into master will decrease coverage by 22.13%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           master    #5029       +/-   ##
===========================================
- Coverage   87.32%   65.18%   -22.14%     
===========================================
  Files         895      492      -403     
  Lines      119946    65894    -54052     
  Branches     1418        0     -1418     
===========================================
- Hits       104748    42956    -61792     
- Misses      14836    22938     +8102     
+ Partials      362        0      -362

Impacted Files	Coverage Δ
python/pyarrow/array.pxi	79.69% <100%> (ø)
python/pyarrow/tests/test_array.py	96.35% <100%> (ø)
cpp/src/arrow/util/memory.h	0% <0%> (-100%)	⬇️
cpp/src/gandiva/date_utils.h	0% <0%> (-100%)	⬇️
cpp/src/arrow/util/memory.cc	0% <0%> (-100%)	⬇️
cpp/src/arrow/filesystem/util-internal.cc	0% <0%> (-100%)	⬇️
cpp/src/arrow/util/sse-util.h	0% <0%> (-100%)	⬇️
cpp/src/gandiva/decimal_type_util.h	0% <0%> (-100%)	⬇️
cpp/src/arrow/compute/logical_type.h	0% <0%> (-100%)	⬇️
cpp/src/parquet/hasher.h	0% <0%> (-100%)	⬇️
... and 887 more

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[pitrou]

+1, LGTM