PAR panicks with utf8's swash_fetch

[Autrijus Tang]

Daniel Shane wrote:
This seems to be a real problem that is showing up every now and then. Seems
there are not enough people using PAR and UTF8 yet to place this bug at the
top of the priority list :(
No, it's just that I lack the neccessary Perl internal-fu to trace it 
down, too.

I can, however, reduce it to this minimal test case under PAR 0.76_99:

	pp -e "use utf8; /\x{100}/i;"

It contains only neccessary elements: "utf8" has to be in scope; the 
character has to be >0xFF; the /i flag has to be there.

The generated executable emits those error messages on ActivePerl 
5.8.2.808 (but should also fail similarily on other platforms):

        Use of uninitialized value in pattern match (m//) at
        /loader/0xfc275c/utf8_heavy.pl line 185.
        (several lines of the same error as above)
        panic: swash_fetch at script/ppq5rNh.pl line 1.
Does it ring a bell to anyone?  I think it's time to Cc p5p now. :-/

Thanks,
/Autrijus/