Add error token in a normal way to the syntax tree as ErrorLeaf.

jedi/parser/__init__.py

@@ -499,9 +499,6 @@ class ParserWithRecovery(Parser):
                 self._indent_counter -= 1
             elif typ == INDENT:
                 self._indent_counter += 1
-            elif typ == ERRORTOKEN:
-                self._add_syntax_error('Strange token', start_pos)
-                continue
 
             yield typ, value, prefix, start_pos
 

jedi/parser/tree.py

@@ -650,7 +650,7 @@ class ErrorNode(BaseNode):
     type = 'error_node'
 
 
-class ErrorLeaf(Leaf):
+class ErrorLeaf(LeafWithNewLines):
     """
     TODO doc
     """

test/test_parser/test_fast_parser.py

@@ -440,6 +440,7 @@ def test_string_literals():
     """)
 
     script = jedi.Script(dedent(source))
+    script._parser.module().end_pos == (6, 0)
     assert script.completions()