github.com/tarrant/terraform@v0.3.8-0.20150402012457-f68c9eee638e/config/test-fixtures/validate-prov-conn-splat-self/main.tf

resource "aws_instance" "bar" {
    connection {
        host = "${element(aws_instance.bar.*.private_ip, 0)}"
    }

    provisioner "local-exec" {}
}