Introduced struct pike_type in preparation for new implementation of type type. Added copy_type() & free_type() for the same reason. f_cast() now expects a value of type type as the first argument. Rev: src/builtin_functions.c:1.342 Rev: src/constants.c:1.25 Rev: src/constants.h:1.16 Rev: src/docode.c:1.104 Rev: src/global.h:1.57 Rev: src/interpret.h:1.77 Rev: src/interpret_functions.h:1.45 Rev: src/language.yacc:1.224 Rev: src/las.c:1.234 Rev: src/las.h:1.47 Rev: src/opcodes.c:1.99 Rev: src/opcodes.h:1.12 Rev: src/pike_types.c:1.147 Rev: src/pike_types.h:1.48 Rev: src/program.c:1.295 Rev: src/program.h:1.116 Rev: src/svalue.h:1.76 Rev: src/treeopt.in:1.56