[test] add test for RM-455

test/test/spec/shortcut_spec.rb

@@ -0,0 +1,17 @@
+class TestShortcut
+  attr_reader :foo
+
+  def setFoo(x)
+    @foo = x
+  end
+end
+
+describe "Shortcut method on RubyObject" do
+  it "should work" do
+    # RM-455
+    obj = TestShortcut.new
+    obj.respond_to?(:foo=).should == true
+    obj.foo = 42
+    obj.foo.should == 42
+  end
+end