array.c, hash.c: add salt

* array.c (rb_ary_hash): add salt to differentiate false and empty
  array.  [ruby-core:58993] [Bug #9231]
* hash.c (rb_any_hash, rb_hash_hash): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44125 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 4 insertions, 0 deletions

diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index 1f434e37fa..fb78085e61 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -909,6 +909,8 @@ class TestArray < Test::Unit::TestCase
     a3 = @cls[ 'dog', 'cat' ]
     assert_equal(a1.hash, a2.hash)
     assert_not_equal(a1.hash, a3.hash)
+    bug9231 = '[ruby-core:58993] [Bug #9231]'
+    assert_not_equal(false.hash, @cls[].hash, bug9231)
   end
 
   def test_include?
diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index afb0ca4805..8c8ce6d7c3 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -883,6 +883,8 @@ class TestHash < Test::Unit::TestCase
     h = @cls[1=>2]
     h.shift
     assert_equal({}.hash, h.hash, '[ruby-core:38650]')
+    bug9231 = '[ruby-core:58993] [Bug #9231]'
+    assert_not_equal(0, @cls[].hash, bug9231)
   end
 
   def test_update2