sR |OP* |no_fh_allowed|NN OP *o
sR |OP* |too_few_arguments|NN OP *o|NN const char* name
sR |OP* |too_many_arguments|NN OP *o|NN const char* name
-s |bool |looks_like_bool|NN OP* o
+s |bool |looks_like_bool|NN const OP* o
s |OP* |newGIVWHENOP |NULLOK OP* cond|NN OP *block \
|I32 enter_opcode|I32 leave_opcode \
|PADOFFSET entertarg