go source for verification 2026-05-22

test/fixedbugs/issue26616.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.
+
+package p
+
+var x int = three() // ERROR "assignment mismatch: 1 variable but three returns 3 values|multiple-value function call in single-value context|multiple-value "
+
+func f() {
+	var _ int = three() // ERROR "assignment mismatch: 1 variable but three returns 3 values|multiple-value function call in single-value context|multiple-value "
+	var a int = three() // ERROR "assignment mismatch: 1 variable but three returns 3 values|multiple-value function call in single-value context|multiple-value "
+	a = three()         // ERROR "assignment mismatch: 1 variable but three returns 3 values|multiple-value function call in single-value context|cannot assign"
+	b := three()        // ERROR "assignment mismatch: 1 variable but three returns 3 values|single variable set to multiple-value|multiple-value function call in single-value context|cannot initialize"
+	_, _ = a, b
+}
+
+func three() (int, int, int)