perldelta: tweak SV flags; eliminate hv_fetchs

Expand the section on SV flags: they have been eliminated rather than just
changed.

And remove this entry:

    Change C<hv_fetch(…, "…", …, …)> to C<hv_fetchs(…, "…", …)>

    The dual-life dists all use Devel::PPPort, so they can use this
    function even though it was only added in 5.10.

which appears to be just an implementation detail.

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 4ed490e..39efba6 100644 (file)
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -2357,17 +2357,14 @@ enhanced.
 
 =item *
 
-The meanings of some internal SV flags have been changed
-
-OPpRUNTIME, SVpbm_VALID, SVpbm_TAIL, SvTAIL_on, SvTAIL_off, SVrepl_EVAL,
-SvEVALED
+Several obscure SV flags have been eliminated, sometimes along with the
+macros which manipulate them: C<SVpbm_VALID>, C<SVpbm_TAIL>, C<SvTAIL_on>,
+C<SvTAIL_off>, C<SVrepl_EVAL>, C<SvEVALED>
 
 =item *
 
-Change C<hv_fetch(…, "…", …, …)> to C<hv_fetchs(…, "…", …)>
-
-The dual-life dists all use Devel::PPPort, so they can use this function even
-though it was only added in 5.10.
+An OP op_private flag has been eliminated: C<OPpRUNTIME>. This used to
+often get set on C<PMOP>s, but had become meaningless over time.
 
 =back