fixes #27586, prefer context type in generic inference

tests/lib_strong/html/typing_test.dart

Index: tests/lib_strong/html/typing_test.dart
diff --git a/tests/lib_strong/html/typing_test.dart b/tests/lib_strong/html/typing_test.dart
index e353bf5c413a48690eefb41b75db635da7821046..144ab8f3e5d68a934db98b07f2018bd16b675db9 100644
--- a/tests/lib_strong/html/typing_test.dart
+++ b/tests/lib_strong/html/typing_test.dart
@@ -7,10 +7,10 @@ main() {
       predicate((x) => x is List<StyleSheet>, 'is a List<StyleSheet>');
 
   test('NodeList', () {
-    List<Node> asList = window.document.queryAll('body');
+    List<Element> asList = window.document.queryAll('body');
     // Check it's Iterable
     int counter = 0;
-    for (Node node in window.document.queryAll('body')) {
+    for (Element node in window.document.queryAll('body')) {
       counter++;
     }
     expect(counter, 1);