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Micah KornfieldWes McKinney
46f75d7383f
Micah Kornfield authored and Wes McKinney committed 4910fbf4fda
ARROW-3133: [C++] Remove allocation from Binary Boolean Kernels.

Also:
- ARROW-3135: add a helper for validity bitmap propagation
- ARROW-4572: remove memory zeroing in Allocator kernel
- Fix regression in InvertKernel where nulls were not being handled (add a unit test to cover this case)
- Add some unit tests for util-internal.h
- lift out_type to OpKernel

Author: Micah Kornfield <emkornfield@gmail.com>

Closes #3731 from emkornfield/bin_kern2 and squashes the following commits:

68af8ab5 <Micah Kornfield> Fix valgrind
63b1e8c2 <Micah Kornfield> ARROW-3133: Remove allocation from Binary Boolean Kernels.