[commit: ghc] wip/erikd/remove-nat's head updated: Add test T12009 (1d95cc7)

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Repository : ssh://git@git.haskell.org/ghc

Branch 'wip/erikd/remove-nat' now includes:

     0051ac1 Update libraries/hpc submodule to v0.6.0.3 release tag
     4466ae6 Update bytestring submodule to 0.10.8.0 release tag
     50e7055 Export oneShot from GHC.Exts
     f9d9375 Adjust testsuite output to bytestring-0.10.8.0
     b036c0a rts: Replace `nat` with `uint32_t`
     1e02493 rts: Specialize `overwritingClosure` for `MSG_THROWTO`
     87cf280 rts: Replace `nat` with `uint32_t`
     d755a3f rts: Specialize `overwritingClosure` for `MSG_THROWTO`
     28a1878 rts/ProfHeap.c: Use `ssize_t` instead of `long`.
     08bfba9 RtsUtils: Use `size_t` instead of `int` where appropriate
     7d6d5fa RtsFlags: Make `mallocFailHook` const correct
     1d95cc7 Add test T12009