Fix for issue 20930

pkg/analyzer/test/generated/static_warning_code_test.dart

Index: pkg/analyzer/test/generated/static_warning_code_test.dart
diff --git a/pkg/analyzer/test/generated/static_warning_code_test.dart b/pkg/analyzer/test/generated/static_warning_code_test.dart
index 03bfb978378947ff0dc6485f4b0b19ffc25da88e..769cebb9206d2bab1159f247a942e87af417c730 100644
--- a/pkg/analyzer/test/generated/static_warning_code_test.dart
+++ b/pkg/analyzer/test/generated/static_warning_code_test.dart
@@ -3308,7 +3308,18 @@ f(var p) {
   }
 }''');
     resolve(source);
-    assertErrors(source, [StaticWarningCode.TYPE_TEST_NON_TYPE]);
+    assertErrors(source, [StaticWarningCode.TYPE_TEST_WITH_NON_TYPE]);
+    verify([source]);
+  }
+
+  void test_typeTestWithUndefinedName() {
+    Source source = addSource(r'''
+f(var p) {
+  if (p is A) {
+  }
+}''');
+    resolve(source);
+    assertErrors(source, [StaticWarningCode.TYPE_TEST_WITH_UNDEFINED_NAME]);
     verify([source]);
   }