ARROW-3441: [Gandiva] Use common unit test creation facilities, do not produce multiple executables for the same unit tests

[wesm]

This also adds a "gandiva" CMake target so you can run ninja gandiva. Additionally, all unit tests now have a gandiva- prefix.

[wesm]

Sample run:

$ ctest -L gandiva -j4
Test project /home/wesm/code/arrow/cpp/build
      Start 107: gandiva-projector_test
      Start 118: gandiva-projector_test_static
      Start 113: gandiva-date_time_test
      Start 109: gandiva-if_expr_test
 1/34 Test #109: gandiva-if_expr_test ......................   Passed    0.25 sec
      Start 111: gandiva-boolean_expr_test
 2/34 Test #113: gandiva-date_time_test ....................   Passed    0.29 sec
      Start 110: gandiva-literal_test
 3/34 Test #111: gandiva-boolean_expr_test .................   Passed    0.20 sec
      Start 108: gandiva-projector_build_validation_test
 4/34 Test #110: gandiva-literal_test ......................   Passed    0.17 sec
      Start 106: gandiva-filter_test
 5/34 Test #108: gandiva-projector_build_validation_test ...   Passed    0.15 sec
      Start 117: gandiva-null_validity_test
 6/34 Test #106: gandiva-filter_test .......................   Passed    0.15 sec
      Start 115: gandiva-hash_test
 7/34 Test #118: gandiva-projector_test_static .............   Passed    0.71 sec
      Start 116: gandiva-in_expr_test
 8/34 Test #117: gandiva-null_validity_test ................   Passed    0.11 sec
      Start  86: gandiva-engine_llvm_test
 9/34 Test #115: gandiva-hash_test .........................   Passed    0.11 sec
      Start  90: gandiva-llvm_generator_test
10/34 Test #107: gandiva-projector_test ....................   Passed    0.78 sec
      Start 112: gandiva-binary_test
11/34 Test  #86: gandiva-engine_llvm_test ..................   Passed    0.09 sec
      Start  94: gandiva-expression_registry_test
12/34 Test  #90: gandiva-llvm_generator_test ...............   Passed    0.09 sec
      Start  88: gandiva-function_registry_test
13/34 Test #116: gandiva-in_expr_test ......................   Passed    0.11 sec
      Start  96: gandiva-lru_cache_test
14/34 Test  #88: gandiva-function_registry_test ............   Passed    0.05 sec
      Start  85: gandiva-bitmap_accumulator_test
15/34 Test  #94: gandiva-expression_registry_test ..........   Passed    0.06 sec
      Start  89: gandiva-llvm_types_test
16/34 Test #112: gandiva-binary_test .......................   Passed    0.09 sec
      Start  93: gandiva-expr_decomposer_test
17/34 Test  #96: gandiva-lru_cache_test ....................   Passed    0.06 sec
      Start  87: gandiva-function_signature_test
18/34 Test  #85: gandiva-bitmap_accumulator_test ...........   Passed    0.05 sec
      Start  97: gandiva-to_date_holder_test
19/34 Test  #89: gandiva-llvm_types_test ...................   Passed    0.05 sec
      Start  98: gandiva-simple_arena_test
20/34 Test  #93: gandiva-expr_decomposer_test ..............   Passed    0.05 sec
      Start  95: gandiva-selection_vector_test
21/34 Test  #87: gandiva-function_signature_test ...........   Passed    0.06 sec
      Start  91: gandiva-annotator_test
22/34 Test  #97: gandiva-to_date_holder_test ...............   Passed    0.05 sec
      Start  92: gandiva-tree_expr_test
23/34 Test  #98: gandiva-simple_arena_test .................   Passed    0.05 sec
      Start 114: gandiva-to_string_test
24/34 Test  #95: gandiva-selection_vector_test .............   Passed    0.05 sec
      Start 103: string_ops_test
25/34 Test #103: string_ops_test ...........................   Passed    0.00 sec
      Start 101: time_test
26/34 Test  #91: gandiva-annotator_test ....................   Passed    0.05 sec
      Start  99: bitmap_test
27/34 Test #101: time_test .................................   Passed    0.01 sec
      Start 100: epoch_time_point_test
28/34 Test  #99: bitmap_test ...............................   Passed    0.01 sec
      Start 104: arithmetic_ops_test
29/34 Test #104: arithmetic_ops_test .......................   Passed    0.00 sec
      Start 105: extended_math_ops_test
30/34 Test #100: epoch_time_point_test .....................   Passed    0.01 sec
      Start 102: hash_test
31/34 Test #105: extended_math_ops_test ....................   Passed    0.00 sec
32/34 Test #102: hash_test .................................   Passed    0.01 sec
33/34 Test  #92: gandiva-tree_expr_test ....................   Passed    0.05 sec
34/34 Test #114: gandiva-to_string_test ....................   Passed    0.05 sec

100% tests passed, 0 tests failed out of 34

Label Time Summary:
arithmetic_ops_test       =   0.00 sec*proc (1 test)
bitmap_test               =   0.01 sec*proc (1 test)
epoch_time_point_test     =   0.01 sec*proc (1 test)
extended_math_ops_test    =   0.00 sec*proc (1 test)
gandiva                   =   3.98 sec*proc (27 tests)
gandiva,unittest          =   0.04 sec*proc (7 tests)
hash_test                 =   0.01 sec*proc (1 test)
string_ops_test           =   0.00 sec*proc (1 test)
time_test                 =   0.01 sec*proc (1 test)
unittest                  =   3.98 sec*proc (27 tests)

Total Test time (real) =   1.02 sec

[wesm]

I'm going to add the precompiled tests to the target, too, just a few minutes

[codecov-io]

Codecov Report

Merging #3091 into master will increase coverage by 1.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3091      +/-   ##
==========================================
+ Coverage   87.12%   88.15%   +1.03%     
==========================================
  Files         492      434      -58     
  Lines       69104    65339    -3765     
==========================================
- Hits        60204    57601    -2603     
+ Misses       8801     7738    -1063     
+ Partials       99        0      -99

Impacted Files	Coverage Δ
go/arrow/array/table.go
go/arrow/math/uint64_amd64.go
go/arrow/internal/testing/tools/bool.go
go/arrow/internal/bitutil/bitutil.go
go/arrow/memory/memory_avx2_amd64.go
go/arrow/array/null.go
go/arrow/datatype_nested.go
go/arrow/array/string.go
go/arrow/math/uint64_avx2_amd64.go
go/arrow/array/builder.go
... and 48 more

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[wesm]

cc @praveenbingo @pravindra

[pravindra]

lgtm. Thanks for fixing this !