--HG--
extra : rebase_source : 596a7e2da6b8270c21bede4d6a2639ad99b90c42

--HG--
rename : tests/run/decorators_T593.pyx => tests/run/decorators_py_T593.py

--HG--
extra : rebase_source : 30e348d1b7f02fdece9508e9718fe8d3f41de523

fix decorator lookup by avoiding (re-)assignments to the function/class name before their execution (ticket #593)

CyFunction

- generate correct code for optimised override calls to methods of builtin types in subtypes
- optimise calls for 'final' subtypes
- disable optimised C-API calls for non-final subtypes

fix support for redeclaring builtin types as external extension types, add a big FIXME to mark for eventual removal

Silence warning about unused args