iseq.c (iseq_s_compile_file): close IO when done

This will prevent some leaked FD warnings in future tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48578 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (iseq_set_sequence): use "nop" insn instead of
  "jump to next insn".
  https://bugs.ruby-lang.org/issues/8543#change-50085



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
proc.c: use RUBY_SAFE_LEVEL_MAX

* proc.c (rb_method_call_with_block): use RUBY_SAFE_LEVEL_MAX,
  which is declared in include/ruby/ruby.h since 2.1.  The safe
  level is now limited upto 3.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48580 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
add test for r48563

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48581 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
use clock_gettime to avoid object creation

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48582 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: fix invalid keyword argument

* parse.y (f_label, f_kw, formal_argument_gen): ignore invalid
  formal argument in keyword argument definition.
  [ruby-dev:48742] [Bug #10545]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/tsort.rb: Returns an enumerator if no block is given.
  [ruby-core:66270] [Feature #10508] Proposed by Andrey Savchenko.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48584 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
win32.c: for non-standard console

* win32/win32.c (constat_reset): do nothing on non-standard
  console emurators.  [ruby-core:66471] [Bug #10546]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48585 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/ruby/test_gc.rb (test_latest_gc_info): do test separately
  to avoid mysterious behavior.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix typo

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48587 b2dd03c8-39d4-4d8f-98ff-823fe69b080e