* variable.c (set_const_visibility): Module#private_constant has
changed the visibility of only the first argument. Now it changes
all of them. [ruby-list:48558]
* test/ruby/test_module.rb: add a test for above.
* variable.c (set_const_visibility): print a warning when no argument
is passwd to Module#private_constant. [ruby-list:48558]
* vm_method.c (set_method_visibility): ditto for
Module#private_class_method.
* variable.c (set_const_visibility): clear inine-cache when constant's
visibility is modified. [ruby-dev:44929]
* test/ruby/test_module.rb (test_private_constants_clear_inlinecache):
add test for it.
merge revision(s) 33935,33936,33987: [Backport #5702]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e