Clear all refined CCs on reopening refinement mod

In cfd7729ce7a31c8b6ec5dd0e99c67b2932de4732 we started using inline
caches for refinements. However, we weren't clearing inline caches when
defined on a reopened refinement module.

Fixes [Bug #20246]

1 files changed, 17 insertions, 0 deletions

diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index cb55627e2c..4fb23d1b54 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -1606,18 +1606,35 @@ class TestRefinement < Test::Unit::TestCase
       end
 
       using R
+      def m
+        C.new.m
+      end
+
       assert_equal(:foo, C.new.m)
+      assert_equal(:foo, m)
 
       module R
         refine C do
+
+          assert_equal(:foo, C.new.m)
+          assert_equal(:foo, m)
+
           alias m m
+
+          assert_equal(:foo, C.new.m)
+          assert_equal(:foo, m)
+
           def m
             :bar
           end
+
+          assert_equal(:bar, C.new.m, "[ruby-core:71423] [Bug #11672]")
+          assert_equal(:bar, m, "[Bug #20285]")
         end
       end
 
       assert_equal(:bar, C.new.m, "[ruby-core:71423] [Bug #11672]")
+      assert_equal(:bar, m, "[Bug #20285]")
     end;
   end