vm_insnhelper.c: add comments

* vm_insnhelper.c (vm_yield_setup_block_args): break a long line and
  add comments.  remove useless code.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41019 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vm_insnhelper.c: extract keyword arguments after splat

* vm_insnhelper.c (vm_yield_setup_block_args): split single parameter
  if any keyword arguments exist, and then extract keyword arguments.
  [ruby-core:55203] [Bug #8463]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41020 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
compile.c: not simple if keyword args

* compile.c (iseq_set_arguments): not a simple single argument if any
  keyword arguments exist.  [ruby-core:55203] [Bug #8463]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41021 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/set.rb (Set#freeze, taint, untaint): Save a "self" by
  utilizing super returning self, and add tests while at it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41022 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_eval.c (rb_mod_module_eval): mention in docs that arguments passed
  to the method are passed to the block

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41023 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* enc/euc_jp.c: fix typo: the name of EUC-JIS-2004.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-06-02

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41025 b2dd03c8-39d4-4d8f-98ff-823fe69b080e