stop using deprecated AND usage

lib/arel/predications.rb

@@ -36,9 +36,9 @@ module Arel
         if other.exclude_end?
           left  = Nodes::GreaterThanOrEqual.new(self, other.begin)
           right = Nodes::LessThan.new(self, other.end)
-          Nodes::And.new left, right
+          Nodes::And.new [left, right]
         else
-          Nodes::Between.new(self, Nodes::And.new(other.begin, other.end))
+          Nodes::Between.new(self, Nodes::And.new([other.begin, other.end]))
         end
       else
         Nodes::In.new self, other
@@ -174,7 +174,7 @@ module Arel
       first = send method_id, others.shift
 
       Nodes::Grouping.new others.inject(first) { |memo,expr|
-        Nodes::And.new(memo, send(method_id, expr))
+        Nodes::And.new([memo, send(method_id, expr)])
       }
     end
   end

test/visitors/test_depth_first.rb

@@ -78,7 +78,6 @@ module Arel
       end
 
       [
-        Arel::Nodes::And,
         Arel::Nodes::Assignment,
         Arel::Nodes::Between,
         Arel::Nodes::DoesNotMatch,
@@ -106,6 +105,17 @@ module Arel
         end
       end
 
+      # N-ary
+      [
+        Arel::Nodes::And,
+      ].each do |klass|
+        define_method("test_#{klass.name.gsub('::', '_')}") do
+          binary = klass.new([:a, :b])
+          @visitor.accept binary
+          assert_equal [:a, :b, binary], @collector.calls
+        end
+      end
+
       [
         Arel::Attributes::Integer,
         Arel::Attributes::Float,

test/visitors/test_to_sql.rb

@@ -50,7 +50,7 @@ module Arel
       end
 
       it "should apply Not to the whole expression" do
-        node = Nodes::And.new @attr.eq(10), @attr.eq(11)
+        node = Nodes::And.new [@attr.eq(10), @attr.eq(11)]
         sql = @visitor.accept Nodes::Not.new(node)
         sql.must_be_like %{NOT ("users"."id" = 10 AND "users"."id" = 11)}
       end
@@ -82,7 +82,7 @@ module Arel
       end
 
       it "should visit_Arel_Nodes_And" do
-        node = Nodes::And.new @attr.eq(10), @attr.eq(11)
+        node = Nodes::And.new [@attr.eq(10), @attr.eq(11)]
         @visitor.accept(node).must_be_like %{
           "users"."id" = 10 AND "users"."id" = 11
         }