Re-add ShowProxy SlotNo orphan instance (#1100)

See the single commit's description

Author: amesgen

cabal.project

@@ -36,12 +36,3 @@ import: ./asserts.cabal
 if(os(windows))
   constraints:
     bitvec -simd
-
-source-repository-package
-  type: git
-  location: https://github.com/IntersectMBO/ouroboros-network
-  tag: 431bb599940d2947b2cb99d3ae29b7f2c4cdd36d
-  --sha256: 1a62hqddpnc0j5r7nl54q79nrxyw77dphpsgp68hxij210dkpvca
-  subdir:
-    ouroboros-network-api
-    ouroboros-network-protocols

ouroboros-consensus/src/ouroboros-consensus/Ouroboros/Consensus/Util/Orphans.hs

@@ -27,6 +27,7 @@ import           Data.SOP.BasicFunctors
 import           NoThunks.Class (InspectHeap (..), InspectHeapNamed (..),
                      NoThunks (..), OnlyCheckWhnfNamed (..), allNoThunks,
                      noThunksInKeysAndValues)
+import           Ouroboros.Consensus.Block.Abstract
 import           Ouroboros.Network.Util.ShowProxy
 import           System.FS.API (SomeHasFS)
 import           System.FS.API.Types (FsPath, Handle)
@@ -42,6 +43,12 @@ instance Serialise (VerKeyDSIGN MockDSIGN) where
   encode = encodeVerKeyDSIGN
   decode = decodeVerKeyDSIGN
 
+{-------------------------------------------------------------------------------
+  ShowProxy
+-------------------------------------------------------------------------------}
+
+instance ShowProxy SlotNo where
+
 {-------------------------------------------------------------------------------
   NoThunks
 -------------------------------------------------------------------------------}