Add JSON.pm to third_party

third_party/JSON/JSON-2.59/t/e90_misc.t

Index: third_party/JSON/JSON-2.59/t/e90_misc.t
diff --git a/third_party/JSON/JSON-2.59/t/e90_misc.t b/third_party/JSON/JSON-2.59/t/e90_misc.t
new file mode 100644
index 0000000000000000000000000000000000000000..a5a68182dcbd75e117117ccef28d636fa21b9f92
--- /dev/null
+++ b/third_party/JSON/JSON-2.59/t/e90_misc.t
@@ -0,0 +1,18 @@
+
+use strict;
+use Test::More tests => 4;
+
+BEGIN {
+    $ENV{ PERL_JSON_BACKEND } = $ARGV[0] || 'JSON::backportPP';
+}
+
+use JSON;
+
+# reported by https://rt.cpan.org/Public/Bug/Display.html?id=68359
+
+eval { JSON->to_json( 5, { allow_nonref => 1 } ) };
+ok($@);
+
+is( q{"5"}, JSON::to_json( "5", { allow_nonref => 1 } ) );
+is( q{5},  JSON::to_json( 5, { allow_nonref => 1 } ) );
+is( q{"JSON"}, JSON::to_json( 'JSON', { allow_nonref => 1 } ) );