Make corelib_strong tests strong-mode compliant

tests/corelib_strong/list_set_range_test.dart

Index: tests/corelib_strong/list_set_range_test.dart
diff --git a/tests/corelib_strong/list_set_range_test.dart b/tests/corelib_strong/list_set_range_test.dart
index da8005238fafc070deb11e897aeca6d840024309..53195abcf163d3a29badc5c0644ed05739556329 100644
--- a/tests/corelib_strong/list_set_range_test.dart
+++ b/tests/corelib_strong/list_set_range_test.dart
@@ -58,15 +58,15 @@ main() {
   testNonExtendableList();
 }
 
-void expectIOORE(Function f) {
+void expectIOORE(void f()) {
   Expect.throws(f, (e) => e is RangeError);
 }
 
-void expectSE(Function f) {
+void expectSE(void f()) {
   Expect.throws(f, (e) => e is StateError);
 }
 
-void expectAE(Function f) {
+void expectAE(void f()) {
   Expect.throws(f, (e) => e is ArgumentError);
 }