introduced a dynamic completion for params

test/completion/dynamic.py

@@ -0,0 +1,14 @@
+"""
+This is used for dynamic object completion.
+Jedi tries to guess the types with a backtracking approach.
+"""
+def func(a):
+    #? int() str()
+    return a
+
+#? int()
+func(1)
+
+func
+
+int(1) + (int(2))+ func('')

test/completion/ordering.py

@@ -70,6 +70,12 @@ def a(a=3):
 a(2)
 #? []
 a(2).func
+
+a_param = 3
+def func(a_param):
+    # should not be int
+    #? []
+    a_param.
 # -----------------
 # class
 # -----------------