Rename buildNativeInputs -> nativeBuildInputs

Likewise for propagatedBuildNativeInputs, etc.  "buildNativeInputs"
sounds like an imperative rather than a noun phrase.

pkgs/development/interpreters/guile/1.8.nix

@@ -14,9 +14,9 @@ stdenv.mkDerivation rec {
   # GCC 4.6 raises a number of set-but-unused warnings.
   configureFlags = [ "--disable-error-on-warning" ];
 
-  buildNativeInputs = [ makeWrapper gawk ];
+  nativeBuildInputs = [ makeWrapper gawk ];
   propagatedBuildInputs = [ readline gmp libtool ];
-  selfBuildNativeInput = true;
+  selfNativeBuildInput = true;
 
   postInstall = ''
     wrapProgram $out/bin/guile-snarf --prefix PATH : "${gawk}/bin"