Ruby

• array.c: Document synonymous methods, by windwiny [GH-277]
• bignum.c: ditto
• complex.c: ditto
• dir.c: ditto
• encoding.c: ditto
• enumerator.c: ditto
• numeric.c: ditto
• proc.c: ditto
• re.c: ditto
• string.c: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40259 b2dd03c8-39d4-4d8f-98ff-823fe69b080e