Fix some internal name handling.

jedi/api/__init__.py

@@ -143,7 +143,7 @@ class Script(object):
     @cache.memoize_method
     def _get_module(self):
         module = er.ModuleContext(self._evaluator, self._get_module_node())
-        imports.add_module(self._evaluator, unicode(module.name), module)
+        imports.add_module(self._evaluator, module.name.string_name, module)
         return module
 
     @property
@@ -437,17 +437,18 @@ def names(source=None, path=None, encoding='utf-8', all_scopes=False,
         is_def = _def._name.tree_name.is_definition()
         return definitions and is_def or references and not is_def
 
+    def get_definitions():
+        for tree_name in get_module_names(script._get_module_node(), all_scopes):
+            name = TreeNameDefinition(
+                module_context.create_context(tree_name),
+                tree_name
+            )
+            yield classes.Definition(script._evaluator, name)
+
     # Set line/column to a random position, because they don't matter.
     script = Script(source, line=1, column=0, path=path, encoding=encoding)
     module_context = script._get_module()
     defs = [
-        classes.Definition(
-            script._evaluator,
-            TreeNameDefinition(
-                module_context.create_context(name),
-                name
-            )
-        ) for name in get_module_names(script._get_module_node(), all_scopes)
     ]
     return sorted(filter(def_ref_filter, defs), key=lambda x: (x.line, x.column))