Make PL_(top|body|form)target PVIVs

These are only used for storing a string and an IV.

Making them into full-blown SVt_PVFMs is overkill.

FmLINES was only being used on these three scalars.  So make it use
the SvIVX field.  struct xpvfm no longer needs an xfm_lines member,
because SVt_PVFMs no longer use it.

This also causes a TODO test in taint.t to start passing, but I do
not fully understand why.  But at least that’s progress. :-)

1 files changed, 1 insertions, 2 deletions

diff --git a/sv.h b/sv.h
index 056d43b118..b2385d0a6d 100644
--- a/sv.h
+++ b/sv.h
@@ -520,7 +520,6 @@ typedef U16 cv_flags_t;
 struct xpvfm {
     _XPV_HEAD;
     _XPVCV_COMMON;
-    IV		xfm_lines;
 };
 
 
@@ -1387,7 +1386,7 @@ sv_force_normal does nothing.
 
 #endif
 
-#define FmLINES(sv)	((XPVFM*)  SvANY(sv))->xfm_lines
+#define FmLINES(sv)	((XPVIV*)  SvANY(sv))->xiv_iv
 
 #define LvTYPE(sv)	((XPVLV*)  SvANY(sv))->xlv_type
 #define LvTARG(sv)	((XPVLV*)  SvANY(sv))->xlv_targ