Fix tuple unpacking for special case

jedi/evaluate/context/iterable.py

@@ -584,7 +584,7 @@ def unpack_tuple_to_dict(context, types, exprlist):
     """
     if exprlist.type == 'name':
         return {exprlist.value: types}
-    elif exprlist.type == 'atom' and exprlist.children[0] in '([':
+    elif exprlist.type == 'atom' and exprlist.children[0] in ('(', '['):
         return unpack_tuple_to_dict(context, types, exprlist.children[1])
     elif exprlist.type in ('testlist', 'testlist_comp', 'exprlist',
                            'testlist_star_expr'):

test/completion/basic.py

@@ -79,6 +79,11 @@ for a3, b3 in (1,""), (1,""), (1,""):
     a3
     #? str()
     b3
+for (a3, b3) in (1,""), (1,""), (1,""):
+    #? int()
+    a3
+    #? str()
+    b3
 
 for a4, (b4, c4) in (1,("", list)), (1,("", list)):
     #? int()

test/completion/comprehensions.py

@@ -27,6 +27,9 @@ a[0]
 a = [a for a,b in [(1,'')]]
 #? int()
 a[0]
+a = [a for (a,b) in [(1,'')]]
+#? int()
+a[0]
 
 arr = [1,'']
 a = [a for a in arr]