Clear up most of the VC6 compiler warnings in the following smoke:

http://www.nntp.perl.org/group/perl.daily-build.reports/39733

p4raw-id: //depot/perl@28626

1 files changed, 1 insertions, 0 deletions

diff --git a/utf8.c b/utf8.c
index 3b2297a993..28ac605295 100644
--- a/utf8.c
+++ b/utf8.c
@@ -1741,6 +1741,7 @@ Perl_swash_fetch(pTHX_ SV *swash, const U8 *ptr, bool do_utf8)
 	return (tmps[off] << 24) + (tmps[off+1] << 16) + (tmps[off+2] << 8) + tmps[off + 3] ;
     }
     Perl_croak(aTHX_ "panic: swash_fetch got swatch of unexpected bit width");
+    NORETURN_FUNCTION_END;
 }
 
 /* Note: