Update to go1.25.0

test/escape_unique.go

@@ -0,0 +1,62 @@
+// errorcheck -0 -m -l
+
+// Copyright 2025 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.
+
+// Test escape analysis for unique.
+
+package escape
+
+import "unique"
+
+type T string
+
+func f1(s string) unique.Handle[string] { // ERROR "s does not escape$"
+	return unique.Make(s)
+}
+
+func f1a(s []byte) unique.Handle[string] { // ERROR "s does not escape$"
+	return unique.Make(string(s)) // ERROR "string\(s\) does not escape$"
+}
+
+func gen[S ~string](s S) unique.Handle[S] {
+	return unique.Make(s)
+}
+
+func f2(s T) unique.Handle[T] { // ERROR "s does not escape$"
+	return unique.Make(s)
+}
+
+func f3(s T) unique.Handle[T] { // ERROR "s does not escape$"
+	return gen(s)
+}
+
+type pair struct {
+	s1 string
+	s2 string
+}
+
+func f4(s1 string, s2 string) unique.Handle[pair] { // ERROR "s1 does not escape$" "s2 does not escape$"
+	return unique.Make(pair{s1, s2})
+}
+
+type viaInterface struct {
+	s any
+}
+
+func f5(s string) unique.Handle[viaInterface] { // ERROR "leaking param: s$"
+	return unique.Make(viaInterface{s}) // ERROR "s escapes to heap$"
+}
+
+var sink any
+
+func f6(s string) unique.Handle[string] { // ERROR "leaking param: s$"
+	sink = s // ERROR "s escapes to heap$"
+	return unique.Make(s)
+}
+
+func f6a(s []byte) unique.Handle[string] { // ERROR "leaking param: s$"
+	sink = s                      // ERROR "s escapes to heap$"
+	return unique.Make(string(s)) // ERROR "string\(s\) does not escape$"
+}