Do not check PVP on internal targets

Internal: testsuite, benchmark.
See haskell#8361.

Cabal/src/Distribution/PackageDescription/Check/Target.hs

@@ -338,7 +338,9 @@ checkBuildInfo cet ams ads bi = do
   let ick = const (PackageDistInexcusable BaseNoUpperBounds)
       rck = PackageDistSuspiciousWarn . MissingUpperBounds cet
   checkPVP ick ids
-  checkPVPs rck rds
+  unless
+    (isInternalTarget cet)
+    (checkPVPs rck rds)
 
   -- Custom fields well-formedness (ASCII).
   mapM_ checkCustomField (customFieldsBI bi)
@@ -728,6 +730,16 @@ mergeDependencies l@(d : _) =
     depName :: Dependency -> String
     depName wd = unPackageName . depPkgName $ wd
 
+-- Is this an internal target? We do not perform PVP checks on those,
+-- see https://github.com/haskell/cabal/pull/8361#issuecomment-1577547091
+isInternalTarget :: CEType -> Bool
+isInternalTarget (CETLibrary{}) = False
+isInternalTarget (CETForeignLibrary{}) = False
+isInternalTarget (CETExecutable{}) = False
+isInternalTarget (CETTest{}) = True
+isInternalTarget (CETBenchmark{}) = True
+isInternalTarget (CETSetup{}) = False
+
 -- ------------------------------------------------------------
 -- Options
 -- ------------------------------------------------------------

doc/cabal-commands.rst

@@ -1166,7 +1166,7 @@ A list of all warnings with their constructor:
 - UnknownArch: unknown architecture in condition.
 - UnknownCompiler: unknown compiler in condition.
 - BaseNoUpperBounds: missing upper bounds for important dependencies (``base``, and for ``custom-setup`` ``Cabal`` too).
-- MissingUpperBounds: missing upper bound in dependency.
+- MissingUpperBounds: missing upper bound in dependency (excluding test-suites and benchmarks).
 - SuspiciousFlagName: troublesome flag name (e.g. starting with a dash).
 - DeclaredUsedFlags: unused user flags.
 - NonASCIICustomField: non-ASCII characters in custom field.