Deprecate previous partial application syntax

Author: José Valim

lib/elixir/lib/kernel/typespec.ex

@@ -216,7 +216,7 @@ defmodule Kernel.Typespec do
   for modules being compiled.
   """
   def defines_type?(module, name, arity) do
-    finder = match?({ ^name, _, vars } when length(vars) == arity, &1)
+    finder = &match?({ ^name, _, vars } when length(vars) == arity, &1)
     :lists.any(finder, Module.get_attribute(module, :type)) or
       :lists.any(finder, Module.get_attribute(module, :opaque))
   end

lib/elixir/src/elixir_partials.erl

@@ -11,6 +11,7 @@ handle({ _, Meta, Args } = Original, S, Opt) when is_list(Args), S#elixir_scope.
     { Call, Def, SC } when Def /= [] ->
       Final = validate(Meta, Def, SC),
       Block = setelement(3, Original, Call),
+      elixir_errors:deprecation(Meta, S#elixir_scope.file, "partial application without capture is deprecated"),
       elixir_fn:fn(Meta, [{ Final, Meta, Block }], SC);
     _ -> error
   end;

lib/elixir/src/elixir_translator.erl

@@ -397,7 +397,9 @@ translate_each({ Atom, Meta, Args } = Original, S) when is_atom(Atom) ->
           elixir_dispatch:dispatch_import(Meta, Atom, Args, S, Callback);
         Else  -> Else
       end;
-    Else -> Else
+    Else ->
+      elixir_errors:deprecation(Meta, S#elixir_scope.file, "partial application without capture is deprecated"),
+      Else
   end;
 
 %% Remote calls
@@ -437,7 +439,9 @@ translate_each({ { '.', _, [Left, Right] }, Meta, Args } = Original, S) when is_
           end;
         Else -> Else
       end;
-    Else -> Else
+    Else ->
+      elixir_errors:deprecation(Meta, S#elixir_scope.file, "partial application without capture is deprecated"),
+      Else
   end;
 
 %% Anonymous function calls

lib/mix/test/mix/deps_test.exs

@@ -43,7 +43,7 @@ defmodule Mix.DepsTest do
 
     in_fixture "deps_status", fn ->
       deps = Mix.Deps.all
-      assert Enum.find deps, match?(Mix.Dep[app: :ok, status: { :ok, _ }], &1)
+      assert Enum.find deps, &match?(Mix.Dep[app: :ok, status: { :ok, _ }], &1)
     end
   after
     Mix.Project.pop