Fix AST-based type inference of top level function tearoffs

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

Index: pkg/analyzer/test/src/task/strong/inferred_type_test.dart
diff --git a/pkg/analyzer/test/src/task/strong/inferred_type_test.dart b/pkg/analyzer/test/src/task/strong/inferred_type_test.dart
index 83d6485eeeac394f93aef3144c924509eb752ecb..5b5a08d107f91ed2b4bf0a3f8966e3b9828f73c4 100644
--- a/pkg/analyzer/test/src/task/strong/inferred_type_test.dart
+++ b/pkg/analyzer/test/src/task/strong/inferred_type_test.dart
@@ -2305,6 +2305,14 @@ var f = () {};
     expect(f.type.toString(), '() → dynamic');
   }
 
+  void test_inferredType_fromTopLevelExecutableTearoff() {
+    var mainUnit = checkFile('''
+var v = print;
+''');
+    var v = mainUnit.topLevelVariables[0];
+    expect(v.type.toString(), '(Object) → void');
+  }
+
   void test_inferredType_isEnum() {
     var mainUnit = checkFile('''
 enum E { v1 }