Implement more typing by youknowone · Pull Request #7078 · RustPython/RustPython

- Implement _ConstEvaluator type in _typing module with STRING
  format support via typing_type_repr (port of _Py_typing_type_repr)
- Add evaluate_bound, evaluate_constraints, evaluate_default
  pygetset properties to TypeVar, ParamSpec, TypeVarTuple
- Emit format validation in evaluator scopes
  (compile_type_param_bound_or_default, TypeAlias value scopes)
  so evaluators raise NotImplementedError for unsupported formats
- Add non-default-after-default SyntaxError in scan_type_params
- Fix ParamSpec default_value to use Mutex for proper caching
- Fix TypeVar constructor: evaluate_constraints set to None
  instead of constraints tuple for eager-constructed TypeVars
- Pass format=1 (FORMAT_VALUE) to all lazy evaluator calls
- Remove 6 expectedFailure markers from test_type_params

…sre module names

- Reject nonlocal binding for type parameters in symboltable
- Enable __class_getitem__ on memoryview, Template, Interpolation
- Fix __set_name__ error note to quote attribute name
- Set re.Match and re.Pattern module to "re" instead of "_sre"
- Migrate parking_lot::Mutex to PyMutex in typevar.rs
- Collapse nested if-let chains in typing_type_repr (clippy)
- Remove 5 expectedFailure markers from test files

Annotation scopes now inherit can_see_class_scope from parent scopes
(not just direct Class parents), allowing annotations in generic
methods inside classes to access class variables via __classdict__.

Remove 3 expectedFailure markers from test_type_params.