diff --git a/jedi/evaluate/__init__.py b/jedi/evaluate/__init__.py
index d7405739..103f5ca0 100644
--- a/jedi/evaluate/__init__.py
+++ b/jedi/evaluate/__init__.py
@@ -207,7 +207,7 @@ class Evaluator(object):
         if isinstance(atom, pr.Name):
             # This is the first global lookup.
             stmt = atom.get_parent_until((pr.ExprStmt, pr.ReturnStmt, pr.Scope))
-            return self.find_types(stmt.parent, atom, stmt.start_pos,
+            return self.find_types(stmt.get_parent_until(pr.IsScope), atom, stmt.start_pos,
                                    search_global=True)
         elif isinstance(atom, pr.Literal):
             return [compiled.create(self, atom.eval())]
diff --git a/jedi/evaluate/finder.py b/jedi/evaluate/finder.py
index 59695762..e0361617 100644
--- a/jedi/evaluate/finder.py
+++ b/jedi/evaluate/finder.py
@@ -87,6 +87,7 @@ class NameFinder(object):
 
                 stmt = name.get_definition()
                 scope = stmt.parent
+                print(name.parent, stmt, scope)
                 if scope in break_scopes:
                     continue
 
diff --git a/jedi/evaluate/param.py b/jedi/evaluate/param.py
index 241c3d61..255c7dc9 100644
--- a/jedi/evaluate/param.py
+++ b/jedi/evaluate/param.py
@@ -125,9 +125,6 @@ class ExecutedParam(pr.Param):
         instance.var_args = var_args
         return instance
 
-    def get_parent_until(self, *args, **kwargs):
-        return self.parent.get_parent_until(*args, **kwargs)
-
 
 def _get_calling_var_args(evaluator, var_args):
     old_var_args = None
diff --git a/jedi/parser/representation.py b/jedi/parser/representation.py
index a65048b4..ac881abf 100644
--- a/jedi/parser/representation.py
+++ b/jedi/parser/representation.py
@@ -1225,7 +1225,7 @@ class ArrayStmt(Statement):
     """
 
 
-class Param(object):
+class Param(Base):
     """
     The class which shows definitions of params of classes and functions.
     But this is not to define function calls.
@@ -1240,12 +1240,20 @@ class Param(object):
         self.default = default
         self.stars = stars
 
+    @property
+    def start_pos(self):
+        return self.tfpdef.start_pos
+
     def get_name(self):
         if is_node(self.tfpdef, 'tfpdef'):
             return self.tfpdef.children[0]
         else:
             return self.tfpdef
 
+    @property
+    def parent_function(self):
+        return self.get_parent_until(IsScope)
+
     def __init__old(self):
         kwargs.pop('names_are_set_vars', None)
         super(Param, self).__init__(*args, names_are_set_vars=True, **kwargs)