Do not have class/module keywords look up ancestors of Object

Fixes case where Object includes a module that defines a constant,
then using class/module keyword to define the same constant on
Object itself.

Implements [Feature #18832]

1 files changed, 12 insertions, 3 deletions

diff --git a/spec/ruby/language/module_spec.rb b/spec/ruby/language/module_spec.rb
index 1a5fcaf46f..e361bf58f5 100644
--- a/spec/ruby/language/module_spec.rb
+++ b/spec/ruby/language/module_spec.rb
@@ -28,9 +28,18 @@ describe "The module keyword" do
     ModuleSpecs::Reopened.should be_true
   end
 
-  it "reopens a module included in Object" do
-    module IncludedModuleSpecs; Reopened = true; end
-    ModuleSpecs::IncludedInObject::IncludedModuleSpecs::Reopened.should be_true
+  ruby_version_is '3.2' do
+    it "does not reopen a module included in Object" do
+      module IncludedModuleSpecs; Reopened = true; end
+      ModuleSpecs::IncludedInObject::IncludedModuleSpecs.should_not == Object::IncludedModuleSpecs
+    end
+  end
+
+  ruby_version_is ''...'3.2' do
+    it "reopens a module included in Object" do
+      module IncludedModuleSpecs; Reopened = true; end
+      ModuleSpecs::IncludedInObject::IncludedModuleSpecs::Reopened.should be_true
+    end
   end
 
   it "raises a TypeError if the constant is a Class" do