From @ShimmerFairy

[22​:09​:43] <lue> rakudo​: say "\xFDD0"
[22​:09​:45] <p6eval> rakudo db0f85​: OUTPUT«Malformed string?current
instr.​: 'perl6;PCT;HLLCompiler;evalpmc' pc 972
(compilers/pct/src/PCT/HLLCompiler.pir​:538)?»
[22​:09​:52] <lue> rakudo​: say "\xFFFD"
[22​:09​:55] <p6eval> rakudo db0f85​: OUTPUT«??»
[22​:10​:10] <lue> apparently it doesn't support the whole of unicode...
[22​:11​:18] <lue> rakudo​: say "\xFFFE"
[22​:11​:20] <p6eval> rakudo db0f85​: OUTPUT«Malformed string?current
instr.​: 'perl6;PCT;HLLCompiler;evalpmc' pc 972
(compilers/pct/src/PCT/HLLCompiler.pir​:538)?»
[22​:11​:28] * lue submits rakudobug

From @coke

On Tue Mar 23 22​:21​:10 2010, lue wrote​:

[22​:09​:43] <lue> rakudo​: say "\xFDD0"
[22​:09​:45] <p6eval> rakudo db0f85​: OUTPUT�Malformed string?current
instr.​: 'perl6;PCT;HLLCompiler;evalpmc' pc 972
(compilers/pct/src/PCT/HLLCompiler.pir​:538)?�
[22​:09​:52] <lue> rakudo​: say "\xFFFD"
[22​:09​:55] <p6eval> rakudo db0f85​: OUTPUT�??�
[22​:10​:10] <lue> apparently it doesn't support the whole of unicode...
[22​:11​:18] <lue> rakudo​: say "\xFFFE"
[22​:11​:20] <p6eval> rakudo db0f85​: OUTPUT�Malformed string?current
instr.​: 'perl6;PCT;HLLCompiler;evalpmc' pc 972
(compilers/pct/src/PCT/HLLCompiler.pir​:538)?�
[22​:11​:28] * lue submits rakudobug

What is the expected output here (here's the current output)

20​:21 < [Coke]> rakudo​: say "\xFDD0"
20​:21 <+p6eval> rakudo 38907e​: OUTPUT«===SORRY!===␤Invalid character for UTF-8
  encoding␤␤»
20​:22 < [Coke]> rakudo​: say "\xFFFD"
20​:22 <+p6eval> rakudo 38907e​: OUTPUT«�␤»
20​:22 < [Coke]> rakudo​: say "\xFFFE"
20​:22 <+p6eval> rakudo 38907e​: OUTPUT«===SORRY!===␤Invalid character for UTF-8
  encoding␤␤»

--
Will "Coke" Coleda

The RT System itself - Status changed from 'new' to 'open'

From @ShimmerFairy

After being pointed to this bug by [Coke], I can say I had no idea what
I was doing or what rakudo was trying to tell me :). It was right then,
and is now.

@ShimmerFairy - Status changed from 'open' to 'rejected'