Add some more overloading tests

t/bugs/overloading_edge_cases.t

@@ -0,0 +1,43 @@
+use strict;
+use warnings;
+
+use Test::More;
+
+{
+    package Role::Overloads;
+    use Moose::Role;
+    use overload q{""} => 'as_string';
+    requires 'as_string';
+}
+
+{
+    package Class::Overloads;
+    use Moose;
+    with 'Role::Overloads';
+    sub as_string { 'foo' }
+}
+
+is(
+    Class::Overloads->new() . q{}, 'foo',
+    'Class::Overloads overloads stringification with overloading defined in role and method defined in class'
+);
+
+{
+    package Parent::NoOverloads;
+    use Moose;
+    sub name { ref $_[0] }
+}
+
+{
+    package Child::Overloads;
+    use Moose;
+    use overload q{""} => 'name';
+    extends 'Parent::NoOverloads';
+}
+
+is(
+    Child::Overloads->new() . q{}, 'Child::Overloads',
+    'Child::Overloads overloads stringification with method inherited from parent'
+);
+
+done_testing;