Most tests already had no global state, however parallel was never enabled. This change enables it for all applicable tests.
Signed-off-by: Ophestra <cat@gensokyo.uk>
It is completely nonsensical and highly error-prone to have multiple implementations of this in the same build. This should be switched at compile time instead therefore the split packages are pointless.
Signed-off-by: Ophestra <cat@gensokyo.uk>