Fix ./setup install comand

Running ./setup install will give you an error:

```
fromFlag NoFlag. Use fromFlagOrDefault
CallStack (from HasCallStack):
  error, called at src/Distribution/Simple/Flag.hs:110:19 in Cabal-3.15.0.0-inplace:Distribution.Simple.Flag
  fromFlag, called at src/Distribution/Simple/Register.hs:161:16 in Cabal-3.15.0.0-inplace:Distribution.Simple.Register
```

This seems to not be tested anywhere and most people will use ./setup
register in any case, but we should fix this for the next point release
in 3.14 series. # Please enter the commit message for your changes.
Lines starting

Fixes #10416

(cherry picked from commit 2a178f2)

# Conflicts:
#	Cabal/src/Distribution/Simple.hs

Cabal/src/Distribution/Simple.hs

@@ -866,7 +866,11 @@ defaultInstallHook pkg_descr localbuildinfo _ flags = do
           { regDistPref = installDistPref flags
           , regInPlace = installInPlace flags
           , regPackageDB = installPackageDB flags
+<<<<<<< HEAD
           , regVerbosity = installVerbosity flags
+=======
+          , registerCommonFlags = installCommonFlags flags
+>>>>>>> 2a178f243 (Fix ./setup install comand)
           }
   when (hasLibs pkg_descr) $ register pkg_descr localbuildinfo registerFlags
 

cabal-testsuite/PackageTests/Install/DistPrefInstall/CHANGELOG.md

@@ -0,0 +1,5 @@
+# Revision history for DistPrefInstall
+
+## 0.1.0.0 -- YYYY-mm-dd
+
+* First version. Released on an unsuspecting world.

cabal-testsuite/PackageTests/Install/DistPrefInstall/DistPrefInstall.cabal

@@ -0,0 +1,18 @@
+cabal-version:   3.12
+name:            DistPrefInstall
+version:         0.1.0.0
+license:         NONE
+author:          Matthew Pickering
+maintainer:      matthewtpickering@gmail.com
+build-type:      Simple
+extra-doc-files: CHANGELOG.md
+
+common warnings
+    ghc-options: -Wall
+
+library
+    import:           warnings
+    exposed-modules:  MyLib
+    build-depends:    base
+    hs-source-dirs:   src
+    default-language: Haskell2010

cabal-testsuite/PackageTests/Install/DistPrefInstall/Setup.hs

@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain

cabal-testsuite/PackageTests/Install/DistPrefInstall/setup.test.hs

@@ -0,0 +1,8 @@
+import Test.Cabal.Prelude
+
+main = setupTest $ recordMode DoNotRecord $ withPackageDb $ do
+    setup "configure" []
+    setup "build" []
+    setup "copy" []
+    setup "install" []
+    setup "sdist" []

cabal-testsuite/PackageTests/Install/DistPrefInstall/src/MyLib.hs

@@ -0,0 +1,4 @@
+module MyLib (someFunc) where
+
+someFunc :: IO ()
+someFunc = putStrLn "someFunc"

changelog.d/t10416

@@ -0,0 +1,11 @@
+synopsis: Fix ./setup install command
+packages: Cabal
+prs: #10417
+issues: #10416
+significance: significant
+
+description: {
+
+- `./setup install` was failing with a `fromFlag NoFlag` error. It is now fixed.
+
+}