Add failing test case for cabal build --enable-build-info

cabal-testsuite/PackageTests/ShowBuildInfo/WithProject/Lib.hs

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

cabal-testsuite/PackageTests/ShowBuildInfo/WithProject/WithProject.cabal

@@ -0,0 +1,13 @@
+cabal-version:   3.0
+name:            WithProject
+version:         0.1.0.0
+build-type:      Simple
+
+common warnings
+    ghc-options: -Wall
+
+library
+    import:           warnings
+    exposed-modules:  Lib
+    build-depends:    base
+    default-language: Haskell2010

cabal-testsuite/PackageTests/ShowBuildInfo/WithProject/cabal.project

@@ -0,0 +1,4 @@
+packages: ./
+
+package WithProject
+    ghc-options: -haddock

cabal-testsuite/PackageTests/ShowBuildInfo/WithProject/with-project.out

@@ -0,0 +1,8 @@
+# cabal build
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O1
+In order, the following will be built:
+ - WithProject-0.1.0.0 (lib) (first run)
+Configuring library for WithProject-0.1.0.0...
+Preprocessing library for WithProject-0.1.0.0...
+Building library for WithProject-0.1.0.0...

cabal-testsuite/PackageTests/ShowBuildInfo/WithProject/with-project.test.hs

@@ -0,0 +1,17 @@
+{-# LANGUAGE OverloadedStrings #-}
+import           Test.Cabal.Prelude
+import           Test.Cabal.DecodeShowBuildInfo
+
+main = cabalTest $ do
+  runShowBuildInfo ["lib:WithProject"]
+  withPlan $ do
+    recordBuildInfo "WithProject" mainLib
+    assertComponent "WithProject" mainLib defCompAssertion
+      { compilerArgsPred = ("-Wall" `elem`) -- added by 'WithProject.cabal'
+      }
+
+    -- See #9927
+    fails $ assertComponent "WithProject" mainLib defCompAssertion
+      { compilerArgsPred = ("-haddock" `elem`) -- added by 'cabal.project'
+      }
+