* vm_insnhelper.h (COPY_CREF): should copy

the NODE_FL_CREF_PUSHED_BY_EVAL flag to hide constants from
  methods defined by class_eval.  [ruby-dev:43365]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31215 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_defined.rb

@@ -86,34 +86,39 @@ class TestDefined < Test::Unit::TestCase
     assert_equal nil, defined?($2)
   end
 
+  class TestAutoloadedSuperclass
+    autoload :A, "a"
+  end
+
+  class TestAutoloadedSubclass < TestAutoloadedSuperclass
+    def a?
+      defined?(A)
+    end
+  end
+
   def test_autoloaded_subclass
     bug = "[ruby-core:35509]"
 
-    klass = Class.new do
-      autoload(:A, "a")
-    end
-    x = klass.new
+    x = TestAutoloadedSuperclass.new
     class << x
       def a?; defined?(A); end
     end
     assert_equal("constant", x.a?, bug)
 
-    klass = Class.new(klass) do
-      def a?; defined?(A); end
+    assert_equal("constant", TestAutoloadedSubclass.new.a?, bug)
+  end
+
+  class TestAutoloadedNoload
+    autoload :A, "a"
+    def a?
+      defined?(A)
     end
-    assert_equal("constant", klass.new.a?, bug)
   end
 
   def test_autoloaded_noload
     loaded = $".dup
     $".clear
-    klass = Class.new do
-      autoload(:A, "a")
-      def a?
-        defined?(A)
-      end
-    end
-    x = klass.new
+    x = TestAutoloadedNoload.new
     assert_equal("constant", x.a?)
     assert_equal([], $")
   ensure

test/ruby/test_module.rb

@@ -1000,4 +1000,20 @@ class TestModule < Test::Unit::TestCase
     INPUT
     assert_in_out_err([], src, %w(Object :ok), [])
   end
+
+  module A
+    B = 42
+  end
+
+  def test_constant_lookup_in_method_defined_by_class_eval
+    A.class_eval do
+      def self.f
+        B
+      end
+    end
+
+    assert_raise(NameError) do
+      A.f
+    end
+  end
 end