Deprecate `expand_hash_conditions_for_aggregates`

This can not expand an array of aggregated objects correctly, and is no
longer used internally since 159b21b.

activerecord/CHANGELOG.md

@@ -1,3 +1,8 @@
*   Deprecate `expand_hash_conditions_for_aggregates` without replacement.
    Using a `Relation` for performing queries is the prefered API.

    *Ryuta Kamizono*

*   Fix not expanded problem when passing an Array object as argument to the where method using `composed_of` column.

    ```

activerecord/lib/active_record/sanitization.rb

@@ -169,6 +169,7 @@ def expand_hash_conditions_for_aggregates(attrs) # :doc:
          end
          expanded_attrs
        end
        deprecate :expand_hash_conditions_for_aggregates

        def replace_bind_variables(statement, values)
          raise_if_bind_arity_mismatch(statement, statement.count("?"), values.size)

activerecord/test/cases/sanitize_test.rb

@@ -4,6 +4,7 @@
require "models/binary"
require "models/author"
require "models/post"
require "models/customer"

class SanitizeTest < ActiveRecord::TestCase
  def setup
@@ -167,6 +168,12 @@ def test_named_bind_with_postgresql_type_casts
    assert_equal "#{ActiveRecord::Base.connection.quote('10')}::integer '2009-01-01'::date", l.call
  end

  def test_deprecated_expand_hash_conditions_for_aggregates
    assert_deprecated do
      assert_equal({ "balance" => 50 }, Customer.send(:expand_hash_conditions_for_aggregates, balance: Money.new(50)))
    end
  end

  private
    def bind(statement, *vars)
      if vars.first.is_a?(Hash)