--- /dev/null
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package callhierarchy
+
+import "golang.org/x/tools/internal/lsp/callhierarchy/outgoing"
+
+func a() { //@mark(hierarchyA, "a")
+ D()
+}
+
+func b() { //@mark(hierarchyB, "b")
+ D()
+}
+
+// C is an exported function
+func C() { //@mark(hierarchyC, "C")
+ D()
+ D()
+}
+
+// To test hierarchy across function literals
+var x = func() { //@mark(hierarchyLiteral, "func"),mark(hierarchyLiteralOut, "x")
+ D()
+}
+
+// D is exported to test incoming/outgoing calls across packages
+func D() { //@mark(hierarchyD, "D"),incomingcalls(hierarchyD, hierarchyA, hierarchyB, hierarchyC, hierarchyLiteral, incomingA),outgoingcalls(hierarchyD, hierarchyE, hierarchyF, hierarchyG, hierarchyLiteralOut, outgoingB)
+ e()
+ x()
+ F()
+ g()
+ outgoing.B()
+}
+
+func e() {} //@mark(hierarchyE, "e")
+
+// F is an exported function
+func F() {} //@mark(hierarchyF, "F")
+
+func g() {} //@mark(hierarchyG, "g")