[REF] *: replace deprecated pycompat helpers for builtins

This commit replaces calls to pycompat helpers that were intended for
python 2 <-> python 3 interoperability for python 3 builtins, as python
2 is no longer officially supported by Odoo.

This includes:
    * calls to imap/izip/ifilter replaced by map/zip/filter
    * uses of text_type replaced by str
    * uses of unichr replaced by chr
    * calls to implements_to_string, implements_iterator removed
    * string_types and integer_types replaced by str, int respectively
    * calls to to_native replaced by calls to to_text

This is done in preparation to the removal of these deprecated helpers
in the following commit.

2 files changed, 4 insertions, 5 deletions

diff --git a/odoo/addons/test_new_api/tests/test_attributes.py b/odoo/addons/test_new_api/tests/test_attributes.py
index b37afe7e30d..94a048f2554 100644
--- a/odoo/addons/test_new_api/tests/test_attributes.py
+++ b/odoo/addons/test_new_api/tests/test_attributes.py
@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
 from odoo.tests import common
-from odoo.tools import pycompat
 
 ANSWER_TO_ULTIMATE_QUESTION = 42
 
@@ -17,7 +16,7 @@ class TestAttributes(common.TransactionCase):
         self.assertTrue(hasattr(instance, 'unknown'))
 
         # Is it the right type ?
-        self.assertIsInstance(instance.unknown, pycompat.integer_types)
+        self.assertIsInstance(instance.unknown, int)
 
         # Is it the right value, in case of, we don't know ;-)
         self.assertEqual(instance.unknown, ANSWER_TO_ULTIMATE_QUESTION)
diff --git a/odoo/addons/test_new_api/tests/test_new_fields.py b/odoo/addons/test_new_api/tests/test_new_fields.py
index 021fad63e39..358efcb575f 100644
--- a/odoo/addons/test_new_api/tests/test_new_fields.py
+++ b/odoo/addons/test_new_api/tests/test_new_fields.py
@@ -6,7 +6,7 @@ from datetime import date, datetime, time
 from odoo import fields
 from odoo.exceptions import AccessError, UserError
 from odoo.tests import common
-from odoo.tools import mute_logger, float_repr, pycompat
+from odoo.tools import mute_logger, float_repr
 from odoo.tools.date_utils import add, subtract, start_of, end_of
 
 
@@ -18,8 +18,8 @@ class TestFields(common.TransactionCase):
         discussion = self.env.ref('test_new_api.discussion_0')
 
         # read field as a record attribute or as a record item
-        self.assertIsInstance(discussion.name, pycompat.string_types)
-        self.assertIsInstance(discussion['name'], pycompat.string_types)
+        self.assertIsInstance(discussion.name, str)
+        self.assertIsInstance(discussion['name'], str)
         self.assertEqual(discussion['name'], discussion.name)
 
         # read it with method read()