test: new test for issue 31637

This pair of packages caused a crash in gollvm, due to a glitch in the
way the front end handles empty/non-name parameters for functions that
are inline candidates.

Updates #31637.

Change-Id: I571c0658a00974dd36025e571638c0c836a3cdfd
Reviewed-on: https://go-review.googlesource.com/c/go/+/173617
Run-TryBot: Benny Siegert <bsiegert@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/test/fixedbugs/issue31637.dir/a.go b/test/fixedbugs/issue31637.dir/a.go
new file mode 100644 (file)
index 0000000..71f3926
--- /dev/null
+++ b/test/fixedbugs/issue31637.dir/a.go
@@ -0,0 +1,15 @@
+// Copyright 2019 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 a
+
+type dO struct {
+       x int
+}
+
+type EDO struct{}
+
+func (EDO) Apply(*dO) {}
+
+var X EDO

diff --git a/test/fixedbugs/issue31637.dir/b.go b/test/fixedbugs/issue31637.dir/b.go
new file mode 100644 (file)
index 0000000..ce83b00
--- /dev/null
+++ b/test/fixedbugs/issue31637.dir/b.go
@@ -0,0 +1,19 @@
+// Copyright 2019 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 main
+
+import "./a"
+
+type No struct {
+       a.EDO
+}
+
+func X() No {
+       return No{}
+}
+
+func main() {
+       X()
+}

diff --git a/test/fixedbugs/issue31637.go b/test/fixedbugs/issue31637.go
new file mode 100644 (file)
index 0000000..dcfb4a7
--- /dev/null
+++ b/test/fixedbugs/issue31637.go
@@ -0,0 +1,11 @@
+// compiledir
+
+// Copyright 2019 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.
+
+// This directory contains a pair of packages that triggered
+// a compiler crash in gollvm (problem in handling an inlinable
+// method with unnamed parameter). See issue 31637 for details.
+
+package ignored