line_t herelines; /* number of lines in here-doc */
line_t preambling; /* line # when processing $ENV{PERL5DB} */
+ bool sig_seen; /* the currently parsing sub has a signature */
/* these are valid while parsing a subroutine signature */
IV sig_elems; /* number of signature elements seen so far */
IV sig_optelems; /* number of optional signature elems seen */