Add regression test for #7960

Author: griggt

tests/run/i7960.scala

@@ -0,0 +1,31 @@
+import scala.concurrent.ExecutionContext.Implicits.global
+import scala.concurrent.duration._
+import scala.concurrent.{Await, Future}
+
+class A() {
+  val bc = B.C(50)
+}
+
+object A {
+  Thread.sleep(100L)
+
+  val a = new A()
+}
+
+
+object B {
+  Thread.sleep(100L)
+
+  case class C(a: Int)
+
+  val a: A = A.a
+}
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    Await.result(Future.sequence(Seq(
+      Future { A.a },
+      Future { B.a },
+    )), 1.seconds)
+  }
+}