fixup! Add --promised-dependency flag to Cabal ./Setup configure interface

Author: fgaz

cabal-install/src/Distribution/Client/Setup.hs

@@ -134,6 +134,8 @@ import Data.List
          ( deleteFirstsBy )
 import System.FilePath
          ( (</>) )
+import Control.Exception
+         ( assert )
 
 globalCommand :: [Command action] -> CommandUI GlobalFlags
 globalCommand commands = CommandUI {
@@ -498,8 +500,11 @@ filterConfigureFlags flags cabalLibVersion
     }
 
     flags_3_11_0 = flags_latest {
-        configDependencies = configDependencies flags ++ configPromisedDependencies flags
-        , configPromisedDependencies = []
+      -- It's too late to convert configPromisedDependencies to anything
+      -- meaningful, so we just assert that it's empty.
+      -- We add a Cabal>=3.11 constraint before solving when multi-repl is
+      -- enabled, so this should never trigger.
+      configPromisedDependencies = assert (null $ configPromisedDependencies flags) []
     }
 
     flags_3_7_0 = flags_3_11_0 {

doc/setup-commands.rst

@@ -876,7 +876,7 @@ Miscellaneous options
     be installed. This is useful when attempting to start multiple component
     sessions with cabal's multi-repl or projects such as Haskell Language Server.
 
-    Several checks which are enabled for ``-dependency``s are disabled for promised
+    Several checks which are enabled for ``--dependency``s are disabled for promised
     dependencies, so prefer to use ``--dependency`` if you know that the dependency
     is already installed.