ghc-prim:GHC.Prim has deprecation warnings on some primops but they don't appear in base:GHC.Exts

Compare for example sizeofSmallMutableArray#:

• https://hackage.haskell.org/package/ghc-prim-0.6.1/docs/GHC-Prim.html#v:sizeofSmallMutableArray-35-
• https://hackage.haskell.org/package/base-4.14.1.0/docs/GHC-Exts.html#v:sizeofSmallMutableArray-35-

added Tbug documentation needs triage labels

added primops label and removed needs triage label

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I suspect the genprimops logic which is responsible for deprecations adds them to the GHC.Prim source module consumed by haddock, but fails to put these deprecations into the metadata used for the wired-in declarations.

mentioned in commit 8885569d

mentioned in merge request !5548 (closed)

mentioned in commit 926e0a71

mentioned in issue #20215 (closed)

mentioned in issue #23161 (closed)

A tactical solution would be to create proxy functions in GHC.Exts and apply deprecations again:

import GHC.Prim hiding (sizeofSmallMutableArray#)
import qualified GHC.Prim

sizeofSmallMutableArray# :: _
sizeofSmallMutableArray# = GHC.Prim.sizeofSmallMutableArray#
{-# WARNING sizeofSmallMutableArray# "..." #-}

mentioned in commit d984388e

Even with the GHC fix in !5548 (closed), haddock needs to be fixed: https://github.com/haskell/haddock/issues/223

mentioned in commit 5db20656

added haddock label

mentioned in commit a3b629b5

mentioned in commit 3682582c

mentioned in commit 7ef9c7ac

mentioned in commit 661e0911

mentioned in commit 43f83187