Un-revert "[MERGE] add+use si_cxsubix field"

original merge commit: v5.31.3-198-gd2cd363728
reverted by:           v5.31.4-0-g20ef288c53

The commit following this commit fixes the breakage, which that means
the revert can be undone.

1 files changed, 1 insertions, 0 deletions

diff --git a/scope.c b/scope.c
index 9b1393c69d..c6616440f6 100644
--- a/scope.c
+++ b/scope.c
@@ -82,6 +82,7 @@ Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
     si->si_next = 0;
     si->si_cxmax = cxitems - 1;
     si->si_cxix = -1;
+    si->si_cxsubix = -1;
     si->si_type = PERLSI_UNDEF;
     Newx(si->si_cxstack, cxitems, PERL_CONTEXT);
     /* Without any kind of initialising CX_PUSHSUBST()