Integrate mainline

p4raw-id: //depot/perlio@11557

diff --cc pod/perlapi.pod
index bee65f6,e41cf8a..f62c626
--- 1/pod/perlapi.pod
--- 2/pod/perlapi.pod
+++ b/pod/perlapi.pod
@@@ -1344,6 -1344,6 +1344,17 @@@ SV is B<not> incremented
  =for hackers
  Found in file sv.c
  
++=item newSV
++
++Create a new null SV, or if len > 0, create a new empty SVt_PV type SV
++with an initial PV allocation of len+1. Normally accessed via the C<NEWSV>
++macro.
++
++      SV*     newSV(STRLEN len)
++
++=for hackers
++Found in file sv.c
++
  =item NEWSV
  
  Creates a new SV.  A non-zero C<len> parameter indicates the number of
@@@ -1357,17 -1357,17 +1368,6 @@@ C<id> is an integer id between 0 and 12
  =for hackers
  Found in file handy.h
  
--=item newSV
--
--Create a new null SV, or if len > 0, create a new empty SVt_PV type SV
--with an initial PV allocation of len+1. Normally accessed via the C<NEWSV>
--macro.
--
--      SV*     newSV(STRLEN len)
--
--=for hackers
--Found in file sv.c
--
  =item newSViv
  
  Creates a new SV and copies an integer into it.  The reference count for the
@@@ -2119,22 -2119,22 +2119,22 @@@ version which guarantees to evaluate s
  =for hackers
  Found in file sv.h
  
--=item SvIVx
++=item SvIVX
  
--Coerces the given SV to an integer and returns it. Guarantees to evaluate
--sv only once. Use the more efficent C<SvIV> otherwise.
++Returns the raw value in the SV's IV slot, without checks or conversions.
++Only use when you are sure SvIOK is true. See also C<SvIV()>.
  
--      IV      SvIVx(SV* sv)
++      IV      SvIVX(SV* sv)
  
  =for hackers
  Found in file sv.h
  
--=item SvIVX
++=item SvIVx
  
--Returns the raw value in the SV's IV slot, without checks or conversions.
--Only use when you are sure SvIOK is true. See also C<SvIV()>.
++Coerces the given SV to an integer and returns it. Guarantees to evaluate
++sv only once. Use the more efficent C<SvIV> otherwise.
  
--      IV      SvIVX(SV* sv)
++      IV      SvIVx(SV* sv)
  
  =for hackers
  Found in file sv.h