RubyVM::InstructionSequence#to_binary_format -> #to_binary
  RubyVM::InstructionSequence.from_binary_format -> .load_from_binary
  RubyVM::InstructionSequence.from_binary_format_extra_data ->
                             .load_from_binary_extra_data

* iseq.c: fix document of iseq.to_binary.
  [Fix GH-1134]

* sample/iseq_loader.rb: catch up this change.

* test/lib/iseq_loader_checker.rb: ditto.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53004 b2dd03c8-39d4-4d8f-98ff-823fe69b080e