Mark a test as broken in GHC 8.10.5

Author: Ailrun

ghcide/test/exe/Main.hs

@@ -3652,6 +3652,9 @@ checkFileCompiles fp diag =
 
 pluginSimpleTests :: TestTree
 pluginSimpleTests =
+#if __GLASGOW_HASKELL__ == 810 && __GLASGOW_HASKELL_PATCHLEVEL1__ == 5
+  expectFailBecause "known broken (see GHC #19763)" $
+#endif
   ignoreInWindowsForGHC88And810 $
   testSessionWithExtraFiles "plugin-knownnat" "simple plugin" $ \dir -> do
     _ <- openDoc (dir </> "KnownNat.hs") "haskell"