Revert "Merge pull request rails#3603 from vijaydev/change_table_without_block_arg"

This reverts commit 81fad6a, reversing
changes made to 23101de.

Conflicts:

	activerecord/test/cases/migration_test.rb

Author: tenderlove

activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb

@@ -242,19 +242,14 @@ def create_table(table_name, options = {}, &blk)
       #
       # See also Table for details on
       # all of the various column transformation
-      def change_table(table_name, options = {}, &blk)
-        bulk_change = supports_bulk_alter? && options[:bulk]
-        recorder = bulk_change ? ActiveRecord::Migration::CommandRecorder.new(self) : self
-        table = Table.new(table_name, recorder)
-
-        if block_given?
-          if blk.arity == 1
-            yield table
-          else
-            table.instance_eval(&blk)
-          end
+      def change_table(table_name, options = {})
+        if supports_bulk_alter? && options[:bulk]
+          recorder = ActiveRecord::Migration::CommandRecorder.new(self)
+          yield Table.new(table_name, recorder)
+          bulk_change_table(table_name, recorder.commands)
+        else
+          yield Table.new(table_name, self)
         end
-        bulk_change_table(table_name, recorder.commands) if bulk_change
       end
 
       # Renames a table.

activerecord/test/cases/migration_test.rb

@@ -1757,60 +1757,6 @@ def test_create_table_should_not_have_mixed_syntax
         end
       end
     end
-
-    def test_change_table_without_block_parameter_no_bulk
-      Person.connection.create_table :testings, :force => true do
-        string :foo
-      end
-      assert Person.connection.column_exists?(:testings, :foo, :string)
-
-      Person.connection.change_table :testings do
-        remove :foo
-        integer :bar
-      end
-
-      assert_equal %w(bar id), Person.connection.columns(:testings).map { |c| c.name }.sort
-    ensure
-      Person.connection.drop_table :testings rescue nil
-    end
-
-    if ActiveRecord::Base.connection.supports_bulk_alter?
-      def test_change_table_without_block_parameter_with_bulk
-        Person.connection.create_table :testings, :force => true do
-          string :foo
-        end
-        assert Person.connection.column_exists?(:testings, :foo, :string)
-
-        assert_queries(1) do
-          Person.connection.change_table(:testings, :bulk => true) do
-            integer :bar
-            string :foo_bar
-          end
-        end
-
-        assert_equal %w(bar foo foo_bar id), Person.connection.columns(:testings).map { |c| c.name }.sort
-      ensure
-        Person.connection.drop_table :testings rescue nil
-      end
-    end
-
-    def test_change_table_should_not_have_mixed_syntax
-      Person.connection.create_table :testings, :force => true do
-        string :foo
-      end
-      assert_raise(NoMethodError) do
-        Person.connection.change_table :testings do |t|
-          t.remove :foo
-          integer :bar
-        end
-      end
-      assert_raise(NameError) do
-        Person.connection.change_table :testings do
-          t.remove :foo
-          integer :bar
-        end
-      end
-    end
   end # SexierMigrationsTest
 
   class MigrationLoggerTest < ActiveRecord::TestCase