Clean up type parsing
Clean up type parsing

Parser.parse_type()'s functionality was mostly redundant with
parse_possible_type().  The redundant functionality was removed,
making parse_type() a very slim wrapper around
parse_possible_type().  Furthermore, parse_possible_type() was
renamed to the more descriptive parse_type_name().

Plasmaworks/Rogue,AbePralle/Rogue,Plasmaworks/Rogue,Plasmaworks/Rogue,AbePralle/Rogue,Plasmaworks/Rogue