Make Array#min/max optimization respect refined methods

Pass in ec to vm_opt_newarray_{max,min}. Avoids having to
call GET_EC inside the functions, for better performance.

While here, add a test for Array#min/max being redefined to
test_optimization.rb.

Fixes [Bug #18180]

1 files changed, 19 insertions, 0 deletions

diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index a623432cf1..96baab03ee 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -2537,6 +2537,25 @@ class TestRefinement < Test::Unit::TestCase
     assert_equal(:second, klass.new.foo)
   end
 
+  class Bug18180
+    module M
+      refine Array do
+        def min; :min; end
+        def max; :max; end
+      end
+    end
+
+    using M
+
+    def t
+      [[1+0, 2, 4].min, [1, 2, 4].min, [1+0, 2, 4].max, [1, 2, 4].max]
+    end
+  end
+
+  def test_refine_array_min_max
+    assert_equal([:min, :min, :max, :max], Bug18180.new.t)
+  end
+
   class Bug17822
     module Ext
       refine(Bug17822) do