Tests

Merge pull request #515 from ChrisRackauckas-Claude/precompile-improv… #292

Job	Run time
Tests (lts, Downstream) / Tests - Downstream	10m 34s
Tests (1, Core) / Tests - Core	7m 37s
Tests (lts, JET) / Tests - JET	2m 24s
Tests (lts, Core) / Tests - Core	4m 27s
Tests (1, JET) / Tests - JET	6m 6s
Tests (1, Downstream) / Tests - Downstream	19m 10s
Tests (pre, JET) / Tests - JET	5m 43s
Tests (pre, Downstream) / Tests - Downstream	20m 7s
Tests (pre, Core) / Tests - Core	7m 6s
	1h 23m 14s

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