dir.c: normalization

* dir.c (glob_helper): re-enalbe normalization.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42501 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ext/-test-/*/depend: TEST_INIT_FUNCS

* ext/-test-/{bignum,debug,exception,string}/depend: TEST_INIT_FUNCS
  is created by globbing in extconf.rb

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42502 b2dd03c8-39d4-4d8f-98ff-823fe69b080e