github.com/lakshmikarc/terraform-2@v0.11.9-0.20181005183753-e0b7475984b7/terraform/test-fixtures/transform-flat-config-basic/main.tf

resource "aws_instance" "foo" {}
resource "aws_instance" "bar" { value = "${aws_instance.foo.value}" }

module "child" {
    source = "./child"
}