numba/numba — pull request #425 by laserson (2014-05-01 23:58:52+00:00)
Title: Added case to typeof_global for None global value

Sometimes (for large functions), `None` uses the `LOAD_GLOBAL` instruction instead of the `LOAD_CONST` instruction, as Numba currently assumes. This change will catch the case that `None` is loaded as a global var.