Don't delete ErrorNode names. They are part of the parser now.

Fixes #594 and possibly also #590 and #579.

jedi/parser/__init__.py

@@ -350,21 +350,6 @@ class ParserWithRecovery(Parser):
                 stack[-1][2][1].append(error_leaf)
 
     def _stack_removal(self, grammar, stack, arcs, start_index, value, start_pos):
-        def clear_names(children):
-            for c in children:
-                try:
-                    clear_names(c.children)
-                except AttributeError:
-                    if isinstance(c, pt.Name):
-                        try:
-                            self._scope_names_stack[-1][c.value].remove(c)
-                            self._used_names[c.value].remove(c)
-                        except ValueError:
-                            pass  # This may happen with CompFor.
-
-        for dfa, state, node in stack[start_index:]:
-            clear_names(children=node[1])
-
         failed_stack = []
         found = False
         all_nodes = []

test/completion/invalid.py

@@ -180,12 +180,12 @@ invalid = .call
 invalid
 
 invalid = call?.call
-#?
+#? str()
 invalid
 
 # comma
 invalid = ,call
-#?
+#? str()
 invalid
 
 

test/completion/usages.py

@@ -3,10 +3,10 @@ Renaming tests. This means search for usages.
 I always leave a little bit of space to add room for additions, because the
 results always contain position informations.
 """
-#< 4 (0,4), (3,0), (5,0), (17,0)
+#< 4 (0,4), (3,0), (5,0), (17,0), (12,4), (14,5), (15,0)
 def abc(): pass
 
-#< 0 (-3,4), (0,0), (2,0), (14,0)
+#< 0 (-3,4), (0,0), (2,0), (14,0), (9,4), (11,5), (12,0)
 abc.d.a.bsaasd.abc.d
 
 abc
@@ -20,7 +20,7 @@ if 1:
 else:
     (abc) = 
 abc = 
-#< (-17,4), (-14,0), (-12,0), (0,0)
+#< (-17,4), (-14,0), (-12,0), (0,0), (-2,0), (-3,5), (-5,4)
 abc
 
 abc = 5

test/test_parser/test_parser.py

@@ -213,3 +213,8 @@ def test_backslash_dos_style():
     grammar = load_grammar()
     m = ParserWithRecovery(grammar, u('\\\r\n')).module
     assert m
+
+
+def test_started_lambda_stmt():
+    p = ParserWithRecovery(load_grammar(), 'lambda a, b: a i')
+    assert p.get_parsed_node().children[0].type == 'error_node'