base: export System.Mem.performBlockingMajorGC
This exports System.Mem.performBlockMajorGC
. This function had already been available as part of the RTS's C interface, but now we export it from the Haskell side as well.
I'll add a changelog entry if the CLC proposal is accepted.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/230
Resolves #24228 (closed)