irb: dead code

* bin/irb: remove dead code from sample/irb.rb.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40560 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
object.c: skip prepending modules

* object.c (rb_obj_is_kind_of): skip prepending modules.
  [ruby-core:54742] [Bug #8357]
* object.c (rb_class_inherited_p): ditto.
  [ruby-core:54736] [Bug #8357]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40561 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* common.mk: remove timestamp in distclean-ext realclean-ext.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40563 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-05-03

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40564 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
win32.c: optimization

* win32/win32.c (poll_child_status): trivial optimization.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40565 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
win32.c: fix build error

* win32/win32.c (poll_child_status): fix build error on older mingw.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
win32.h: INTPTR_MAX, INTPTR_MIN, UINTPTR_MAX

* include/ruby/win32.h (INTPTR_MAX, INTPTR_MIN, UINTPTR_MAX): also
  should be defined when defining intptr_t and uintptr_t.
  bigdecimal.c requires the former two now.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40567 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
{getaddrinfo,getnameinfo}.c: fix for old platforms

* ext/socket/{getaddrinfo,getnameinfo}.c: define socklen_t if not
  defined, e.g., older VC.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40568 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* common.mk (yes-test-all): needs sudo-precheck for dtrace.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40569 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/extconf.rb: Make default_ipv6 true for Cygwin.
  Cygwin supports IPv6 since Cygwin 1.7.1 (2009-12).
  http://cygwin.com/ml/cygwin-announce/2009-12/msg00027.html



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40570 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/cgi/util.rb: class methods modulize for using like a function.
  [Feature #8354]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40571 b2dd03c8-39d4-4d8f-98ff-823fe69b080e