Make struct regexp the body of SVt_REGEXP SVs, REGEXPs become SVs,

and regexp reference counting is via the regular SV reference counting.
This was not as easy at it looks.

p4raw-id: //depot/perl@32804

1 files changed, 4 insertions, 3 deletions

diff --git a/perl.h b/perl.h
index 3bad1eb69a..0f6557250c 100644
--- a/perl.h
+++ b/perl.h
@@ -2352,7 +2352,8 @@ typedef struct STRUCT_SV SV;
 typedef struct av AV;
 typedef struct hv HV;
 typedef struct cv CV;
-typedef struct regexp REGEXP;
+typedef struct regexp ORANGE;	/* This is the body structure.  */
+typedef SV REGEXP;
 typedef struct gp GP;
 typedef struct gv GV;
 typedef struct io IO;
@@ -3308,8 +3309,8 @@ struct nexttoken {
 };
 #endif
 
-#include "regexp.h"
 #include "sv.h"
+#include "regexp.h"
 #include "util.h"
 #include "form.h"
 #include "gv.h"
@@ -5075,7 +5076,7 @@ MGVTBL_SET(
     MEMBER_TO_FPTR(Perl_magic_setregexp),
     0,
     0,
-    MEMBER_TO_FPTR(Perl_magic_freeregexp),
+    0,
     0,
     0,
     0