test/ruby (*no_hidden_garbage): disable GC and skip if multi-threaded
Any single object allocation can reduce object count, and object counts are global, so multi-threading leads to unpredictable results.
See also similar commits: r60699 and r62608
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63885 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test/ruby (*no_hidden_garbage): disable GC and skip if multi-threaded
Any single object allocation can reduce object count, and
object counts are global, so multi-threading leads to unpredictable
results.
See also similar commits: r60699 and r62608
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63885 b2dd03c8-39d4-4d8f-98ff-823fe69b080e