creduce: migrate to by-name

pkgs/by-name/cr/creduce/package.nix

@@ -4,13 +4,15 @@
   fetchFromGitHub,
   cmake,
   makeWrapper,
-  llvm,
-  libclang,
+  llvmPackages_18,
   flex,
   zlib,
   perlPackages,
   util-linux,
 }:
+let
+  llvmPackages = llvmPackages_18;
+in
 
 stdenv.mkDerivation {
   pname = "creduce";
@@ -44,14 +46,14 @@ stdenv.mkDerivation {
   nativeBuildInputs = [
     cmake
     makeWrapper
-    llvm.dev
+    llvmPackages.llvm.dev
   ];
   buildInputs = [
     # Ensure stdenv's CC is on PATH before clang-unwrapped
     stdenv.cc
     # Actual deps:
-    llvm
-    libclang
+    llvmPackages.llvm
+    llvmPackages.libclang
     flex
     zlib
   ]

pkgs/top-level/all-packages.nix

@@ -5542,10 +5542,6 @@ with pkgs;
 
   credstash = with python3Packages; toPythonApplication credstash;
 
-  creduce = callPackage ../development/tools/misc/creduce {
-    inherit (llvmPackages_18) llvm libclang;
-  };
-
   css-html-js-minify = with python3Packages; toPythonApplication css-html-js-minify;
 
   cvise = python3Packages.callPackage ../development/tools/misc/cvise {