test_gc.rb: shorten

* test/ruby/test_gc.rb (test_sweep_in_finalizer): omit iteration number to 2.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44000 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_hash.rb: move tests

* test/ruby/test_hash.rb: move hash value tests from test_array.rb.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_hash.rb: import tests from rubyspec

* test/ruby/test_hash.rb: import tests for recursive hash values
  from rubyspec/core/{array,hash}/hash_spec.rb.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44002 b2dd03c8-39d4-4d8f-98ff-823fe69b080e