chore(debugging): convert trace ghc warnings to hlint warnings

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8700
GitOrigin-RevId: 29b1ee9172bb10823420de9555c3e22f9846facd

.hlint.yaml

@@ -71,6 +71,19 @@
         within: []
         message: "undefined isn't allowed"
 
+      ## Trace debugging
+      - name: "ltrace"
+        within: []
+        message: "ltrace left in code"
+      - name: "ltraceM"
+        within: []
+        message: "ltraceM left in code"
+      - name: "traceToFile"
+        within: []
+        message: "traceToFile left in code"
+      - name: "traceToFileM"
+        within: []
+        message: "traceToFileM left in code"
 
 ################################################################################
 # Ignore some builtin hints

server/lib/hasura-prelude/src/Hasura/Prelude.hs

@@ -299,12 +299,14 @@ tshow = T.pack . show
 -- | Labeled, prettified 'traceShowId'.
 ltrace :: Show a => String -> a -> a
 ltrace lbl x = Debug.trace (lbl <> ": " <> TL.unpack (PS.pShow x)) x
-{-# WARNING ltrace "ltrace left in code" #-}
+
+{- HLINT ignore ltrace -}
 
 -- | Labeled, prettified 'traceShowM'.
 ltraceM :: Applicative m => Show a => String -> a -> m ()
 ltraceM lbl x = Debug.traceM (lbl <> ": " <> TL.unpack (PS.pShow x))
-{-# WARNING ltraceM "ltraceM left in code" #-}
+
+{- HLINT ignore ltraceM -}
 
 -- | Trace a prettified value to a file.
 traceToFile :: Show a => FilePath -> a -> a
@@ -312,7 +314,8 @@ traceToFile filepath x =
   Debug.trace
     ("tracing to " <> filepath)
     (unsafePerformIO (TLIO.writeFile filepath (PS.pShowNoColor x) $> x))
-{-# WARNING traceToFile "traceToFile left in code" #-}
+
+{- HLINT ignore traceToFile -}
 
 -- | Trace a prettified value to a file in an Applicative context.
 traceToFileM :: Applicative m => Show a => FilePath -> a -> m ()
@@ -323,7 +326,8 @@ traceToFileM filepath x =
         filepath,
         show $ unsafePerformIO $ TLIO.writeFile filepath $ PS.pShowNoColor x
       ]
-{-# WARNING traceToFileM "traceToFileM left in code" #-}
+
+{- HLINT ignore traceToFileM -}
 
 --------------------------------------------------------------------------------
 -- Map-related utilities