Merge pull request #942 from Altai-man/empty-emit-fix

Simplification of LAST block

src/core/Rakudo/Internals/VMBackedDecoder.pm

@@ -28,10 +28,7 @@ augment class Rakudo::Internals {
                 my $available = $decoder.consume-available-chars();
                 emit $available if $available ne '';
                 LAST {
-                    with $decoder {
-                        my $rest = .consume-all-chars();
-                        emit $rest if $rest ne '';
-                    }
+                    if $decoder.consume-all-chars() -> $rest { emit $rest };
                 }
             }
         }