fix #26393, treat tear offs as definite functions

pkg/analyzer/test/src/task/strong/checker_test.dart

Index: pkg/analyzer/test/src/task/strong/checker_test.dart
diff --git a/pkg/analyzer/test/src/task/strong/checker_test.dart b/pkg/analyzer/test/src/task/strong/checker_test.dart
index f7ce4b20f518dcefde77a55728b50f58ddc6dfe7..43336713ecc174c0b6c2aec833c431854ca54ad0 100644
--- a/pkg/analyzer/test/src/task/strong/checker_test.dart
+++ b/pkg/analyzer/test/src/task/strong/checker_test.dart
@@ -2687,6 +2687,18 @@ class H implements F {
 ''');
   }
 
+  void test_methodTearoffStrictArrow() {
+    // Regression test for https://github.com/dart-lang/sdk/issues/26393
+    checkFile(r'''
+class A {
+  void foo(dynamic x) {}
+  void test(void f(int x)) {
+    test(foo);
+  }
+}
+    ''');
+  }
+
   void test_mixinOverrideOfGrandInterface_interfaceOfAbstractSuperclass() {
     checkFile('''
 class A {}