make ValuesQuerySet have proper Collection generic type (#140)

test-data/typecheck/managers/querysets/test_basic_methods.yml

@@ -3,14 +3,14 @@
         from myapp.models import Blog
 
         qs = Blog.objects.all()
-        reveal_type(qs) # N: Revealed type is 'django.db.models.query.QuerySet[myapp.models.Blog*]'
+        reveal_type(qs) # N: Revealed type is 'django.db.models.manager.Manager[myapp.models.Blog]'
         reveal_type(qs.get(id=1)) # N: Revealed type is 'myapp.models.Blog*'
         reveal_type(iter(qs)) # N: Revealed type is 'typing.Iterator[myapp.models.Blog*]'
         reveal_type(qs.iterator()) # N: Revealed type is 'typing.Iterator[myapp.models.Blog*]'
         reveal_type(qs.first()) # N: Revealed type is 'Union[myapp.models.Blog*, None]'
         reveal_type(qs.earliest()) # N: Revealed type is 'myapp.models.Blog*'
         reveal_type(qs[0]) # N: Revealed type is 'myapp.models.Blog*'
-        reveal_type(qs[:9]) # N: Revealed type is 'django.db.models.query.QuerySet[myapp.models.Blog*]'
+        reveal_type(qs[:9]) # N: Revealed type is 'django.db.models.manager.Manager[myapp.models.Blog]'
         reveal_type(qs.in_bulk()) # N: Revealed type is 'builtins.dict[Any, myapp.models.Blog*]'
 
         # .dates / .datetimes
@@ -18,7 +18,7 @@
         reveal_type(Blog.objects.datetimes("created_at", "day")) # N: Revealed type is 'django.db.models.query.ValuesQuerySet[myapp.models.Blog*, datetime.datetime]'
 
         # AND-ing QuerySets
-        reveal_type(Blog.objects.all() & Blog.objects.all()) # N: Revealed type is 'django.db.models.query.QuerySet[myapp.models.Blog*]'
+        reveal_type(Blog.objects.all() & Blog.objects.all()) # N: Revealed type is 'django.db.models.manager.Manager[myapp.models.Blog]'
     installed_apps:
         - myapp
     files:

test-data/typecheck/managers/querysets/test_values_list.yml

@@ -53,7 +53,7 @@
                     text = models.CharField(max_length=100)
                     blog = models.ForeignKey(to=Blog, on_delete=models.CASCADE)
 
--   case: values_list_flat_true
+-   case: values_list_flat_true_methods
     main: |
         from myapp.models import MyUser, MyUser2
         reveal_type(MyUser.objects.values_list('name', flat=True).get())  # N: Revealed type is 'builtins.str*'
@@ -194,6 +194,8 @@
         from myapp.models import Blog, Publisher
         reveal_type(Blog.objects.values_list('id', flat=True))  # N: Revealed type is 'django.db.models.query.ValuesQuerySet[myapp.models.Blog, builtins.int]'
         reveal_type(Blog.objects.values_list('publisher_id', flat=True))  # N: Revealed type is 'django.db.models.query.ValuesQuerySet[myapp.models.Blog, builtins.int]'
+        # is Iterable[int]
+        reveal_type(list(Blog.objects.values_list('id', flat=True)))  # N: Revealed type is 'builtins.list[builtins.int*]'
     installed_apps:
         - myapp
     files:

test-data/typecheck/managers/test_managers.yml

@@ -308,7 +308,7 @@
     main: |
         from myapp.models import User
         reveal_type(User.objects.get())  # N: Revealed type is 'myapp.models.User*'
-        reveal_type(User.objects.select_related())  # N: Revealed type is 'django.db.models.query.QuerySet[myapp.models.User*]'
+        reveal_type(User.objects.select_related())  # N: Revealed type is 'myapp.models.User_MyManager[myapp.models.User]'
     installed_apps:
         - myapp
     files:

test-data/typecheck/models/test_meta_options.yml

@@ -36,3 +36,23 @@
                     name = models.CharField(max_length=100)
                     age = models.IntegerField()
                     to_user = models.ForeignKey('self', on_delete=models.SET_NULL)
+
+-   case: get_field_with_abstract_inheritance
+    main: |
+        from myapp.models import AbstractModel
+        class MyModel(AbstractModel):
+            pass
+        reveal_type(MyModel._meta.get_field('field'))  # N: Revealed type is 'Any'
+    installed_apps:
+        - myapp
+    files:
+        -   path: myapp/__init__.py
+        -   path: myapp/models.py
+            content: |
+                from django.db import models
+                from django.contrib.postgres.fields import ArrayField
+                class AbstractModel(models.Model):
+                    class Meta:
+                        abstract = True
+                class MyModel(AbstractModel):
+                    field = ArrayField(models.IntegerField(), default=[])