Revert "Fix: no longer shows folders recursively to root"

This reverts commit 03b4177d3d.

jedi/api/project.py

@@ -110,10 +110,7 @@ class Project(object):
                 suffixed += discover_buildout_paths(inference_state, inference_state.script_path)
 
                 if add_parent_paths:
-                    traversed = list(traverse_parents(
-                        inference_state.script_path,
-                        root=self._path,
-                    ))
+                    traversed = list(traverse_parents(inference_state.script_path))
 
                     # AFAIK some libraries have imports like `foo.foo.bar`, which
                     # leads to the conclusion to by default prefer longer paths

jedi/common/utils.py

@@ -2,31 +2,15 @@ import os
 from contextlib import contextmanager
 
 
-def traverse_parents(path, root=None, include_current=False):
-    """Iterate directories from a path to search root
-
-    :path: the path of the script/directory to check.
-    :root: the root of the upward search. Assumes the system root if root is
-            None.
-    :include_current: includes the current file / directory.
-
-    If the root path is not a substring of the provided path, assume the root
-    search path as well.
-    """
+def traverse_parents(path, include_current=False):
     if not include_current:
         path = os.path.dirname(path)
 
     previous = None
-    if root is None or not path.startswith(root):
     while previous != path:
         yield path
         previous = path
         path = os.path.dirname(path)
-    else:
-        while previous != root:
-            yield path
-            previous = path
-            path = os.path.dirname(path)
 
 
 @contextmanager