Add new internal error message to perldiag

p4raw-id: //depot/perl@24889

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index c00ae54..bfc1258 100644 (file)
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -3704,6 +3704,11 @@ assignment or as a subroutine argument for example).
 (F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but
 a version of the setuid emulator somehow got run anyway.
 
+=item sv_upgrade from type %d down to type %d
+
+(P) Perl tried to force the upgrade an SV to a type which was actually
+inferior to its current type.
+
 =item Switch (?(condition)... contains too many branches in regex; marked by <-- HERE in m/%s/
 
 (F) A (?(condition)if-clause|else-clause) construct can have at most two