Initial commit: Go 1.23 release state

test/fixedbugs/issue13415.go

@@ -0,0 +1,19 @@
+// errorcheck
+
+// Copyright 2015 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 error message regarding := appears on
+// correct line (and not on the line of the 2nd :=).
+
+package p
+
+func f() {
+    select {
+    case x, x := <-func() chan int { // ERROR "x repeated on left side of :=|redefinition|declared and not used"
+            c := make(chan int)
+            return c
+    }():
+    }
+}