chore: consolidate hlint snake_case exceptions across codebase

Removes individual per-file hlint ignore pragmas for snake_case naming
and consolidates them into a single rule in the root .hlint.yaml
configuration file.

- Add global hlint rule to ignore "Use camelCase" warnings in test modules,
  that applies to Test.**, Gen.**, and Test.Hedgehog.** module patterns
- Remove 12 duplicate "{- HLINT ignore "Use camelCase" -}" pragmas from test files

Author: newhoggy

.hlint.yaml

@@ -57,6 +57,10 @@
 # - ignore: {name: Use let}
 # - ignore: {name: Use const, within: SpecialModule} # Only within certain modules
 
+# Allow snake_case naming in test modules (following Haskell test property convention)
+- ignore: {name: Use camelCase, within: [Test.Cardano.Api.**, Test.Golden.Cardano.Api.**]}
+
+- ignore: {name: Use + directly}
 
 # Define some custom infix operators
 # - fixity: infixr 3 ~^#^~

cardano-api/gen/Test/Hedgehog/Roundtrip/CBOR.hs

@@ -23,8 +23,6 @@ import GHC.Stack qualified as GHC
 import Hedgehog qualified as H
 import Hedgehog.Internal.Property (failWith)
 
-{- HLINT ignore "Use camelCase" -}
-
 -- | Assert that CBOR serialisation and deserialisation roundtrips.
 trippingCbor
   :: ()

cardano-api/test/cardano-api-golden/Test/Golden/Cardano/Api/Script.hs

@@ -32,8 +32,6 @@ import Hedgehog.Extras.Aeson
 import Test.Tasty (TestTree)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 exampleSimpleScriptV1_All :: SimpleScript
 exampleSimpleScriptV1_All =
   RequireAllOf

cardano-api/test/cardano-api-test/Test/Cardano/Api/Address.hs

@@ -23,8 +23,6 @@ import Hedgehog.Gen qualified as H
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 -- Address CBOR round trips
 
 prop_roundtrip_shelley_address :: Property

cardano-api/test/cardano-api-test/Test/Cardano/Api/CBOR.hs

@@ -40,8 +40,6 @@ import Test.Hedgehog.Roundtrip.CBOR qualified as H
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 -- TODO: Need to add PaymentExtendedKey roundtrip tests however
 -- we can't derive an Eq instance for Crypto.HD.XPrv
 

cardano-api/test/cardano-api-test/Test/Cardano/Api/Cip129.hs

@@ -25,8 +25,6 @@ import Hedgehog.Gen.QuickCheck qualified as Q
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 -- | Test CIP-129 encodings. Contains examples from CIP-129 and dual hash types for committee roles.
 -- https://github.com/cardano-foundation/CIPs/blob/master/CIP-0129/README.md#abstract
 prop_decode_cip129 :: Property

cardano-api/test/cardano-api-test/Test/Cardano/Api/Envelope.hs

@@ -16,8 +16,6 @@ import Hedgehog qualified as H
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 prop_roundtrip_ByronVerificationKey_envelope :: Property
 prop_roundtrip_ByronVerificationKey_envelope =
   roundtrip_VerificationKey_envelope AsByronKey

cardano-api/test/cardano-api-test/Test/Cardano/Api/Json.hs

@@ -21,8 +21,6 @@ import Hedgehog.Gen qualified as Gen
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 prop_json_roundtrip_alonzo_genesis :: Property
 prop_json_roundtrip_alonzo_genesis = H.property $ do
   genesis <- forAll genAlonzoGenesis

cardano-api/test/cardano-api-test/Test/Cardano/Api/KeysByron.hs

@@ -16,8 +16,6 @@ import Test.Hedgehog.Roundtrip.CBOR (trippingCbor)
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 prop_roundtrip_byron_key_CBOR :: Property
 prop_roundtrip_byron_key_CBOR = H.property $ do
   seed <- H.forAll $ deterministicSigningKey AsByronKey <$> Gen.genSeedForKey AsByronKey

cardano-api/test/cardano-api-test/Test/Cardano/Api/Ord.hs

@@ -16,8 +16,6 @@ import Hedgehog.Gen qualified as H
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.Hedgehog (testProperty)
 
-{- HLINT ignore "Use camelCase" -}
-
 ord_distributive
   :: (Show a, Ord a, Ord b)
   => H.Gen a -> (a -> b) -> Property