Add support for non-empty-array notation #86

Job	Run time
Code Coverage / Code Coverage	22s
Coding Standards / Coding Standards (8.0)	25s
Lint root / Lint yaml & Composer (8.0)	11s
Dependency analysis / Dependency Analysis (8.0)	20s
Static analysis / Static Code Analysis (8.0)	16s
Unit test / Supported Versions Matrix	6s
Unit test / Tests (7.3, lowest)	21s
Unit test / Tests (7.3, locked)	12s
Unit test / Tests (7.3, highest)	44s
Unit test / Tests (7.4, lowest)	41s
Unit test / Tests (7.4, locked)	16s
Unit test / Tests (7.4, highest)	20s
Unit test / Tests (8.0, lowest)	20s
Unit test / Tests (8.0, locked)	38s
Unit test / Tests (8.0, highest)	22s
Unit test / Tests (8.1, lowest)	39s
Unit test / Tests (8.1, locked)	17s
Unit test / Tests (8.1, highest)	26s
Unit test / Tests (8.2, lowest)	22s
Unit test / Tests (8.2, locked)	14s
Unit test / Tests (8.2, highest)	56s
Unit test / Tests (8.3, lowest)	41s
Unit test / Tests (8.3, locked)	54s
Unit test / Tests (8.3, highest)	1m 11s
	11m 14s

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