Refactor Jedi so we use stub modules as much as possible

jedi/evaluate/compiled/__init__.py

@@ -7,8 +7,12 @@ from jedi.evaluate.helpers import execute_evaluated
 
 
 def builtin_from_name(evaluator, string):
-    builtins = evaluator.builtins_module
-    filter_ = next(builtins.get_filters())
+    typing_builtins_module = evaluator.builtins_module
+    if string in ('None', 'True', 'False'):
+        builtins, = typing_builtins_module.non_stub_context_set
+        filter_ = next(builtins.get_filters())
+    else:
+        filter_ = next(typing_builtins_module.get_filters())
     name, = filter_.get(string)
     context, = name.infer()
     return context

jedi/evaluate/compiled/context.py

@@ -82,6 +82,14 @@ class CompiledObject(Context):
     def py__path__(self):
         return self.access_handle.py__path__()
 
+    @property
+    def string_names(self):
+        # For modules
+        return tuple(self.py__name__().split('.'))
+
+    def get_qualified_names(self):
+        return self.string_names
+
     def py__bool__(self):
         return self.access_handle.py__bool__()