Add tests for using aliased.pm with type signatures.

t/lib/My/Annoyingly/Long/Name/Space.pm

@@ -0,0 +1,3 @@
+package My::Annoyingly::Long::Name::Space;
+use Moose;
+1;

t/type_alias.t

@@ -0,0 +1,27 @@
+use strict;
+use warnings;
+use Test::More;
+use Test::Exception;
+
+use FindBin;
+use lib "$FindBin::Bin/lib";
+
+{
+    package TestClass;
+    use Moose;
+    use MooseX::Method::Signatures;
+
+    use aliased 'My::Annoyingly::Long::Name::Space', 'Shortcut';
+
+    eval 'method alias_sig (Shortcut $affe) { }';
+    ::ok(!$@, 'method with aliased type constraint compiles');
+}
+
+my $o = TestClass->new;
+my $affe = My::Annoyingly::Long::Name::Space->new;
+
+lives_ok(sub {
+    $o->alias_sig($affe);
+}, 'calling method with aliased type constraint');
+
+done_testing;