vimPlugins.completion-tabnine: link to TabNine binary

pkgs/misc/vim-plugins/overrides.nix

@@ -9,6 +9,7 @@
 , gobject-introspection, glib, wrapGAppsHook
 , substituteAll
 , languagetool
+, tabnine
 , Cocoa, CoreFoundation, CoreServices
 , buildVimPluginFrom2Nix
 , nodePackages
@@ -603,6 +604,15 @@ self: super: {
       ln -s ${maple-bin}/bin/maple $target/bin/maple
     '';
   });
+
+  completion-tabnine = super.completion-tabnine.overrideAttrs(old: {
+    buildInputs = [ tabnine ];
+
+    postFixup = ''
+      mkdir $target/binaries
+      ln -s ${tabnine}/bin/TabNine $target/binaries/TabNine_$(uname -s)
+    '';
+  });
 } // (
   let
     nodePackageNames = [