1 files changed, 23 insertions, 0 deletions
diff --git a/test/fixedbugs/issue27938.go b/test/fixedbugs/issue27938.go
new file mode 100644
index 0000000..5392c65
--- /dev/null
+++ b/test/fixedbugs/issue27938.go
@@ -0,0 +1,23 @@
+// errorcheck -d=panic
+
+// Copyright 2018 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.
+
+// Verify that we get a single non-confusing error
+// message for embedded fields/interfaces that use
+// a qualified identifier with non-existing package.
+
+package p
+
+type _ struct {
+	F sync.Mutex // ERROR "undefined: sync|expected package|reference to undefined name"
+}
+
+type _ struct {
+	sync.Mutex // ERROR "undefined: sync|expected package|reference to undefined name"
+}
+
+type _ interface {
+	sync.Mutex // ERROR "undefined: sync|expected package|expected signature or type name|reference to undefined name"
+}