Fix an issue with creating contexts.

test/test_api/test_completion.py

@@ -15,3 +15,16 @@ def test_empty_init():
     class X(object): pass
     X(''')
     assert Script(code).completions()
+
+
+def test_in_empty_space():
+    code = dedent('''\
+    class X(object):
+        def __init__(self):
+            hello
+            ''')
+    comps = Script(code, 3, 7).completions()
+    self, = [c for c in comps if c.name == 'self']
+    assert self.name == 'self'
+    def_, = self._goto_definitions()
+    assert def_.name == 'X'