Add -Winconsistent-flags warning

The warning fires when inconsistent command line flags are passed.

For example:

• -dynamic-too and -dynamic
• -dynamic-too on windows
• -O and --interactive
• etc

This is on by default and allows users to control whether the warning is displayed and whether it should be an error or not.

Fixes #22572 (closed)

compiler/GHC/Driver/Errors/Ppr.hs

@@ -294,7 +294,7 @@ instance Diagnostic DriverMessage where
       -> ErrorWithoutFlag
     DriverInterfaceError reason -> diagnosticReason reason
     DriverInconsistentDynFlags {}
-      -> WarningWithoutFlag
+      -> WarningWithFlag Opt_WarnInconsistentFlags
     DriverSafeHaskellIgnoredExtension {}
       -> WarningWithoutFlag
     DriverPackageTrustIgnored {}