closurecompiler: 20180506 -> 20180610

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/closure-compiler/versions.

These checks were done:

- built on NixOS
- /nix/store/7mbi0qnqknb3z96a4af1p8wyyi0jf2q5-closure-compiler-20180610/bin/closure-compiler passed the binary check.
- 1 of 1 passed binary check by having a zero exit code.
- 0 of 1 passed binary check by having the new version present in output.
- found 20180610 with grep in /nix/store/7mbi0qnqknb3z96a4af1p8wyyi0jf2q5-closure-compiler-20180610
- directory tree listing: https://gist.github.com/2841b8a1c31feea2745c98e5234d70c3
- du listing: https://gist.github.com/e36999cb96d2e1b1366f7bd1c3804cad

pkgs/development/compilers/closure/default.nix

@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "closure-compiler-${version}";
-  version = "20180506";
+  version = "20180610";
 
   src = fetchurl {
     url = "https://dl.google.com/closure-compiler/compiler-${version}.tar.gz";
-    sha256 = "10w9vs61fs14k8g3wlng0ifj0knfm0xfc4rsnd2c75464hkdxvr9";
+    sha256 = "1qg9a1whmrkrifqrsb9m541cgr3rf1nnkqlv4q7rq30m8bdilvk5";
   };
 
   sourceRoot = ".";