psym_do_stmt
&& ps.psyms.sym[ps.psyms.len - 1] == psym_do_stmt;
&& ps.psyms.sym[ps.psyms.len - 1] != psym_do_stmt
ps_psyms_replace2(psym_do_stmt);
ps.psyms.sym[ps.psyms.len - 2] == psym_do_stmt) {
if (ps.psyms.sym[ps.psyms.len - 1] == psym_do_stmt) {