rename ruby_iseq_disasm_insn() -> rb_iseq_disasm_insn().
  rename ruby_iseq_disasm() -> rb_iseq_disasm().
* compile.c:
  rename ruby_iseq_compile() -> rb_iseq_compile_node().
  rename ruby_iseq_translate_threaded_code() ->
  rb_iseq_translate_threaded_code().
  rename ruby_insns_name_array() -> rb_insns_name_array().
  rename ruby_iseq_build_from_ary() -> rb_iseq_build_from_ary().
* iseq.c, compile.c: remove ruby_insn_make_insn_table() and make
  static function insn_make_insn_table().
* iseq.h, ruby.c, vm.c, vm_core.h, vm_eval.c, vm_dump.c,
  blockinlining.c: ditto.
  Rename strange "ruby_" prefix to "rb_" prefix.
  This changes may affect only core because renamed functions
  require a pointer of rb_iseq_t which is not exposed.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21653 b2dd03c8-39d4-4d8f-98ff-823fe69b080e