go source for verification 2026-05-22

test/fixedbugs/issue27356.go

@@ -0,0 +1,19 @@
+// errorcheck
+
+// 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.
+
+// Issue 27356: function parameter hiding built-in function results in compiler crash
+
+package p
+
+var a = []int{1,2,3}
+
+func _(len int) {
+	_ =  len(a) // ERROR "cannot call|expected function"
+}
+
+var cap = false
+var _ = cap(a) // ERROR "cannot call|expected function"
+