Tests

Implement FinalPrivateConstantRule #19790

Job	Run time
Tests (7.4, ubuntu-latest)	1m 52s
Tests (7.4, windows-latest)	21s
Integration tests (ubuntu-latest)	36s
Tests (8.0, ubuntu-latest)	27s
Integration tests (windows-latest)	19s
Tests (8.0, windows-latest)	22s
Tests (8.1, ubuntu-latest)	35s
Determine levels tests matrix	23s
Tests (8.1, windows-latest)	21s
Tests (8.2, ubuntu-latest)	35s
Tests (8.2, windows-latest)	22s
Tests (8.3, ubuntu-latest)	35s
Tests (8.3, windows-latest)	10s
Tests (8.4, ubuntu-latest)	35s
Tests (8.4, windows-latest)	18s
Levels tests	1s
	7m 52s

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