nixpkgs/neovim: add --noEmit to tsc compiler

.config/nixpkgs/neovim/neovim.nix

@@ -37,7 +37,7 @@ let
     name = "extra-tsc-compiler";
     destination = "/after/compiler/tsc.vim";
     text = ''
-      CompilerSet makeprg=node_modules/.bin/tsc\ --incremental
+      CompilerSet makeprg=node_modules/.bin/tsc\ --incremental\ --noEmit
     '';
   };
   extraPath = [