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"

pkgs/development/interpreters/guile/default.nix

@@ -14,7 +14,7 @@
     sha256 = "0f53pxkia4v17n0avwqlcjpy0n89hkazm2xsa6p84lv8k6k8y9vg";
   };
 
-  buildNativeInputs = [ makeWrapper gawk pkgconfig ];
+  nativeBuildInputs = [ makeWrapper gawk pkgconfig ];
   buildInputs = [ readline libtool libunistring libffi ];
   propagatedBuildInputs = [ gmp boehmgc ]
 
@@ -25,7 +25,7 @@
     ++ [ libtool libunistring ];
 
   # A native Guile 2.0 is needed to cross-build Guile.
-  selfBuildNativeInput = true;
+  selfNativeBuildInput = true;
 
   enableParallelBuilding = true;