Introduce error recovery for the parser: At the moment just recover from broken statements.
Start using arrays.
A first array test passing.
Unaccessible array indexes should still produce results.
Start working with arithmetics.
Slices
Few fixes.
Reworked ExprStmt.get_definition
Add a method 'Name.assignment_indexes', to process tuple assignments.
Fix a lot more of the tuple assignments.
Be able to differentiate tuple/list/dict.
Parentheses without commas are no tuples.
More and probably the last tuple assignment stuff.
'.NAME' lookups.
Use used_names not in pgen2, but only in our parser.
Param helper class in the tree.
Scope.names_dict implementation.
get_names_dict removed and use instead the names_dict attribute.
Create a next_sibling method on _Leaf, which is then used to check for self attributes.
Name.is_definition implementation.