Add autogen field completions to cabal stanzas (#4526)

Author: Sid1005

plugins/hls-cabal-plugin/src/Ide/Plugin/Cabal/Completion/Data.hs

@@ -90,31 +90,39 @@ libraryFields =
       ("visibility:", constantCompleter ["private", "public"]),
       ("reexported-modules:", noopCompleter),
       ("signatures:", noopCompleter),
-      ("other-modules:", modulesCompleter sourceDirsExtractionLibrary)
+      ("other-modules:", modulesCompleter sourceDirsExtractionLibrary),
+      ("autogen-includes:", filePathCompleter),
+      ("autogen-modules:", modulesCompleter sourceDirsExtractionLibrary)
+
     ]
 
 executableFields :: Map KeyWordName Completer
 executableFields =
   Map.fromList
     [ ("main-is:", mainIsCompleter sourceDirsExtractionExecutable),
       ("scope:", constantCompleter ["public", "private"]),
-      ("other-modules:", modulesCompleter sourceDirsExtractionExecutable)
+      ("other-modules:", modulesCompleter sourceDirsExtractionExecutable),
+      ("autogen-modules:", modulesCompleter sourceDirsExtractionExecutable)
     ]
 
 testSuiteFields :: Map KeyWordName Completer
 testSuiteFields =
   Map.fromList
     [ ("type:", constantCompleter ["exitcode-stdio-1.0", "detailed-0.9"]),
       ("main-is:", mainIsCompleter sourceDirsExtractionTestSuite),
-      ("other-modules:", modulesCompleter sourceDirsExtractionTestSuite)
+      ("other-modules:", modulesCompleter sourceDirsExtractionTestSuite),
+      ("autogen-modules:", modulesCompleter sourceDirsExtractionTestSuite),
+      ("autogen-includes:", filePathCompleter)
     ]
 
 benchmarkFields :: Map KeyWordName Completer
 benchmarkFields =
   Map.fromList
     [ ("type:", noopCompleter),
       ("main-is:", mainIsCompleter sourceDirsExtractionBenchmark),
-      ("other-modules:", modulesCompleter sourceDirsExtractionBenchmark)
+      ("other-modules:", modulesCompleter sourceDirsExtractionBenchmark),
+      ("autogen-modules:", modulesCompleter sourceDirsExtractionBenchmark),
+      ("autogen-includes:", filePathCompleter)
     ]
 
 foreignLibraryFields :: Map KeyWordName Completer