Refactoring: Make Import.get_all_import_names return NameParts.

jedi/evaluate/__init__.py

@@ -323,7 +323,7 @@ class Evaluator(object):
             if stmt.alias_name_part == call_path[0]:
                 return [call_path[0]]
 
-            names = stmt.get_all_import_name_parts()
+            names = stmt.get_all_import_names()
             # Filter names that are after our Name
             removed_names = len(names) - names.index(call_path[0]) - 1
             i = imports.ImportWrapper(self, stmt, kill_count=removed_names)

jedi/evaluate/helpers.py

@@ -226,7 +226,7 @@ def get_module_name_parts(module):
     for stmt_or_import in statements_or_imports:
         if isinstance(stmt_or_import, pr.Import):
             for name in stmt_or_import.get_all_import_names():
-                name_parts.update(name.names)
+                name_parts.add(name)
         else:
             # Running this ensures that all the expression lists are generated
             # and the parents are all set. (Important for Lambdas) Howeer, this