Fix loading of .rb locale files when load_path is not a string, eg it…

… is a Pathname

lib/i18n/backend/base.rb

@@ -244,7 +244,7 @@ def load_file(filename)
         # Loads a plain Ruby translations file. eval'ing the file must yield
         # a Hash containing translation data with locales as toplevel keys.
         def load_rb(filename)
-          translations = eval(IO.read(filename), binding, filename)
+          translations = eval(IO.read(filename), binding, filename.to_s)
           [translations, false]
         end
 

test/i18n/load_path_test.rb

@@ -31,4 +31,14 @@ def setup
     I18n.load_path << Dir[locales_dir + '/*.{rb,yml}']
     assert_equal "baz", I18n.t(:'foo.bar')
   end
+
+  test "adding Pathnames to the load path does not break YML file locale loading" do
+    I18n.load_path << Pathname.new(locales_dir + '/en.yml')
+    assert_equal "baz", I18n.t(:'foo.bar')
+  end
+
+  test "adding Pathnames to the load path does not break Ruby file locale loading" do
+    I18n.load_path << Pathname.new(locales_dir + '/en.rb')
+    assert_equal "bas", I18n.t(:'fuh.bah')
+  end
 end