symbol.c: return the results directly

* symbol.c (lookup_str_id, lookup_str_sym, lookup_id_str): return
  the result ID, Symbol, and string directly instead of returning
  via a pointer.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46971 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
symbol.c: wrap global_symbols tables

* symbol.c (register_symid_direct, unregister_sym): extract to
  wrap global_symbols tables.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/cgi/core.rb: remove unused variables.
* lib/erb.rb: ditto.
* lib/mkmf.rb: ditto.
* lib/net/http/response.rb: ditto.
* lib/optparse/version.rb: ditto.
* lib/prime.rb: ditto.
* lib/racc/parser.rb: ditto.
* lib/rexml/document.rb: ditto.
* lib/rexml/dtd/dtd.rb: ditto.
* lib/rexml/element.rb: ditto.
* lib/rexml/functions.rb: ditto.
* lib/rexml/parsers/xpathparser.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46973 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/openssl/ossl_hmac.c: Fix NO_HMAC warning [Fixes GH-665]
  Patched by @vipulnsward https://github.com/ruby/ruby/pull/665


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-07-28

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46975 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/zlib/zlib.c: [DOC] Remove default value of Zlib constants, as
  they may change in the implementation without notice. Patched by
  @robin850 [Fixes GH-682] https://github.com/ruby/ruby/pull/682


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e