Revert r35339-35343 because of no tests.
hash.c: Alias ENV.to_h to ENV.to_hash [ref #6276]
lib/ostruct.rb: Add OpenStruct#to_h [Feature #6276]
struct.c: Add Struct#to_h [Feature #6276]
object.c: Add NilClass#to_h [Feature #6276]
hash.c: Add Hash#to_h [Feature #6276]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Revert r35339-35343 because of no tests.
hash.c: Alias ENV.to_h to ENV.to_hash [ref #6276]
lib/ostruct.rb: Add OpenStruct#to_h [Feature #6276]
struct.c: Add Struct#to_h [Feature #6276]
object.c: Add NilClass#to_h [Feature #6276]
hash.c: Add Hash#to_h [Feature #6276]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e