compiler/rb: Use top level namespace for thrift reference
compiler/rb: Use top level namespace for thrift reference

upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift,upfluence/thrift