fix warnings on Elixir 1.19-dev

Author: SteffenDE

lib/phoenix/naming.ex

@@ -43,7 +43,7 @@ defmodule Phoenix.Naming do
     suffix_size = byte_size(suffix)
     prefix_size = byte_size(string) - suffix_size
     case string do
-      <<prefix::binary-size(prefix_size), ^suffix::binary>> -> prefix
+      <<prefix::binary-size(^prefix_size), ^suffix::binary>> -> prefix
       _ -> string
     end
   end

mix.exs

@@ -23,7 +23,6 @@ defmodule Phoenix.MixProject do
       elixir: @elixir_requirement,
       deps: deps(),
       package: package(),
-      preferred_cli_env: [docs: :docs],
       consolidate_protocols: Mix.env() != :test,
       xref: [
         exclude: [
@@ -47,6 +46,12 @@ defmodule Phoenix.MixProject do
     ]
   end
 
+  def cli do
+    [
+      preferred_envs: [docs: :docs]
+    ]
+  end
+
   defp elixirc_paths(:docs), do: ["lib", "installer/lib"]
   defp elixirc_paths(_), do: ["lib"]
 
@@ -124,12 +129,12 @@ defmodule Phoenix.MixProject do
       main: "overview",
       logo: "logo.png",
       extra_section: "GUIDES",
-      assets: "guides/assets",
+      assets: %{"guides/assets" => "assets"},
       formatters: ["html", "epub"],
       groups_for_modules: groups_for_modules(),
       extras: extras(),
       groups_for_extras: groups_for_extras(),
-      groups_for_functions: [
+      groups_for_docs: [
         Reflection: &(&1[:type] == :reflection)
       ],
       skip_undefined_reference_warnings_on: ["CHANGELOG.md"]