Prevent warnings: the block passed to ... may be ignored

test/ruby/test_keyword.rb

@@ -193,7 +193,7 @@ class TestKeywordArguments < Test::Unit::TestCase
     # cfunc call
     assert_equal(nil, p(**nil))
 
-    def self.a0; end
+    def self.a0(&); end
     assert_equal(nil, a0(**nil))
     assert_equal(nil, :a0.to_proc.call(self, **nil))
     assert_equal(nil, a0(**nil, &:block))

test/ruby/test_proc.rb

@@ -217,11 +217,14 @@ class TestProc < Test::Unit::TestCase
   end
 
   def test_block_given_method_to_proc
+    verbose_bak, $VERBOSE = $VERBOSE, nil
     bug8341 = '[Bug #8341]'
     m = method(:m_block_given?).to_proc
     assert(!m.call, "#{bug8341} without block")
     assert(m.call {}, "#{bug8341} with block")
     assert(!m.call, "#{bug8341} without block second")
+  ensure
+    $VERBOSE = verbose_bak
   end
 
   def test_block_persist_between_calls