Add JSON.pm to third_party

third_party/JSON/JSON-2.58/t/xe02_bool.t

+#!/usr/bin/perl -w
+
+use strict;
+
+use Test::More;
+use strict;
+
+BEGIN { plan tests => 11 };
+
+BEGIN { $ENV{PERL_JSON_BACKEND} = 1; }
+
+use JSON;
+
+SKIP: {
+    skip "can't use JSON::XS.", 11, unless( JSON->backend->is_xs );
+
+my $json = new JSON;
+
+is($json->encode([!1]),   '[""]');
+is($json->encode([!!2]), '["1"]');
+
+is($json->encode([ 'a' eq 'b'  ]), '[""]');
+is($json->encode([ 'a' eq 'a'  ]), '["1"]');
+
+is($json->encode([ ('a' eq 'b') + 1  ]), '[1]');
+is($json->encode([ ('a' eq 'a') + 1  ]), '[2]');
+
+ok(JSON::true eq 'true');
+ok(JSON::true eq  '1');
+ok(JSON::true == 1);
+isa_ok(JSON::true, JSON->backend . '::Boolean');
+isa_ok(JSON::true, 'JSON::Boolean');
+
+}