Add new builder with compression always enabled for verifying correctness

[nicola-cab]

What, How & Why?

Compressing integer arrays will basically impact all the data stored and queried in these arrays. Adding a new builder that runs with compression always on in order to verify that none of our tests breaks when the storing format changes.

☑️ ToDos

• 📝 Changelog update
• 🚦 Tests (or not relevant)
• C-API, if public C++ API changed
• bindgen/spec.yml, if public C++ API changed

[finnschiermer]

very good!

[coveralls-official]

Pull Request Test Coverage Report for Build nicola.cabiddu_1558

Details

• 20 of 24 (83.33%) changed or added relevant lines in 2 files are covered.
• 42 unchanged lines in 13 files lost coverage.
• Overall coverage increased (+0.03%) to 91.598%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/realm/array_encode.cpp	1	5	20.0%

Files with Coverage Reduction	New Missed Lines	%
src/realm/index_string.hpp	1	93.68%
test/test_dictionary.cpp	1	99.85%
test/test_sync.cpp	1	94.36%
src/realm/collection_parent.cpp	2	92.48%
src/realm/query_expression.hpp	2	93.68%
src/realm/sync/network/http.hpp	2	82.41%
src/realm/sync/network/network.cpp	3	89.66%
src/realm/util/file.cpp	3	81.02%
src/realm/util/future.hpp	3	95.98%
src/realm/sync/transform.cpp	4	64.67%

Totals
Change from base Build nicola.cabiddu_1554:	0.03%
Covered Lines:	245063
Relevant Lines:	267543

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💛 - Coveralls