Revert 205057 "Add JSON.pm to third_party"

trunk/src/third_party/JSON/JSON-2.59/t/21_evans_bugrep.t

-use strict;
-use Test::More;
-
-BEGIN { plan tests => 6 };
-
-BEGIN { $ENV{PERL_JSON_BACKEND} = "JSON::backportPP"; }
-
-BEGIN {
-    use lib qw(t);
-    use _unicode_handling;
-}
-
-
-use JSON;
-
-print JSON->backend, "\t", JSON->backend->VERSION, "\n";
-
-my $data = ["\x{3042}\x{3044}\x{3046}\x{3048}\x{304a}",
-            "\x{304b}\x{304d}\x{304f}\x{3051}\x{3053}"];
-
-my $j = new JSON;
-my $js = $j->encode($data);
-$j = undef;
-
-my @parts = (substr($js, 0, int(length($js) / 2)),
-             substr($js, int(length($js) / 2)));
-$j = JSON->new;
-my $object = $j->incr_parse($parts[0]);
-
-ok( !defined $object );
-
-eval {
-    $j->incr_text;
-};
-
-like( $@, qr/incr_text can not be called when the incremental parser already started parsing/ );
-
-$object = $j->incr_parse($parts[1]);
-
-ok( defined $object );
-
-is( $object->[0], $data->[0] );
-is( $object->[1], $data->[1] );
-
-eval {
-    $j->incr_text;
-};
-
-ok( !$@ );
-