* ext/socket/socket.c (unix_peeraddr): getpeername(2) may result
  len = 0.

* string.c (rb_str_subpat_set): support function for new argument
  pattern String#[re,offset] = val. [new]

* eval.c (POP_BLOCK): rb_gc_force_recycle() was called too much.
  Should not be called if SCOPE_DONT_RECYCLE is set.

* string.c (rb_str_aref_m): new argument pattern
  String#[re,offset]. [new]

* string.c (rb_str_substr): should return an instance of
  receiver's class.

* string.c (rb_str_succ): ditto.

* array.c (rb_ary_subseq): ditto.

* array.c (rb_ary_initialize): Array.new([1,2,3]) => [1,2,3]. [new]

* string.c (rb_str_reverse): should return an instance of
  receiver's class.

* string.c (rb_str_times): ditto.

* array.c (rb_ary_times): ditto

* string.c (str_gsub): ditto.

* string.c (rb_str_ljust): ditto.

* string.c (rb_str_rjust): ditto.

* string.c (rb_str_center): ditto.

* eval.c (eval): retrieves file, line information from binding.

* eval.c (intersect_fds): counts intersecting fds.

* eval.c (rb_thread_schedule): only fds requested by
  each thread count as select_value.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1761 b2dd03c8-39d4-4d8f-98ff-823fe69b080e