Tests

Fix `RaggedEnd` in range and returning `DiffEqArray` #318

Job	Run time
Tests (lts, Downstream) / Tests - Downstream	6m 10s
Tests (lts, nopre) / Tests - nopre	3m 0s
Tests (pre, Downstream) / Tests - Downstream	15m 18s
Tests (1, Downstream) / Tests - Downstream	13m 55s
Tests (1, nopre) / Tests - nopre	6m 10s
Tests (1, Core) / Tests - Core	6m 4s
Tests (pre, Core) / Tests - Core	5m 27s
Tests (lts, Core) / Tests - Core	4m 3s
	1h 0m 7s

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