* hash.c (any_hash): fix Symbol#hash to be nondeterministic.
The patch was provided by Eric Wong. [ruby-core:80433] [Bug #13376]
test/ruby/test_symbol.rb: new test for nondeterminism
We need to ensure hashes for static symbols remain
non-deterministic to avoid DoS attacks. This is currently the
case since 2.4+, but was not for the 2.3 series.
* test/ruby/test_symbol.rb (test_hash_nondeterministic): new test
[ruby-core:80430] [Bug #13376]
merge revision(s) 58200: [Backport #13376]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@58203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e