Tests

Fix recursivefill! failure with immutable StaticArrays #236

Job	Run time
Tests (lts, Downstream) / Tests - Downstream	10m 53s
Tests (pre, Core) / Tests - Core	5m 42s
Tests (pre, Downstream) / Tests - Downstream	16m 46s
Tests (1, Core) / Tests - Core	5m 27s
Tests (lts, Core) / Tests - Core	4m 13s
Tests (1, Downstream) / Tests - Downstream	17m 39s
	1h 0m 40s

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