missing/setproctitle.c: Avoid invalidating argv[1], argv[2], etc. until the first call to Process.setproctitle, because the ps command of AIX refers to the argv array. [Bug #10090]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47852 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
hash.c (rb_any_hash): remove unnecessary dsym check

gcc (Debian 4.7.2-5) 4.7.2 on x86 generates smaller code this
way, as it does not seem to be able to reuse the result of
SPECIAL_CONST_P.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47853 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
benchmark/bm_hash_aref_sym*.rb: force static symbols

Dynamic symbols hash more slowly because they need extra method
dispatch in rb_any_hash.  I am not sure if dynamic symbols are
a realistic use case as hash keys, so this commit only
restores performance when comparing against versions of Ruby
which lack dsyms.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47854 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
array.c: fix potential memory leak

* array.c (ary_new): allocate buffer in heap after new object get
  allocated successfully, to get rid of potential memory leak at
  object allocation failure.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47855 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
variable.c: Module#deprecate_constant

* variable.c (rb_const_get_0): warn deprecated constant reference.

* variable.c (rb_mod_deprecate_constant): mark constants to be
  warned as deprecated.