Mark some analyzer tests as being flaky

Change-Id: I61838bd32427ea18000df33181cf908783607240
Reviewed-on: https://dart-review.googlesource.com/69180
Reviewed-by: Konstantin Shcheglov <[email protected]>
Commit-Queue: Brian Wilkerson <[email protected]>

Author: bwilkerson

pkg/analysis_server/test/analysis/get_errors_test.dart

@@ -164,7 +164,17 @@ class GetErrorsTest_UseCFE extends GetErrorsTest {
 
   @failingTest
   @override
-  test_hasErrors() => super.test_hasErrors();
+  test_hasErrors() {
+    fail('Flaky');
+//    return super.test_hasErrors();
+  }
+
+  @failingTest
+  @override
+  test_noErrors() {
+    fail('Flaky');
+//    return super.test_noErrors();
+  }
 
   @override
   test_removeContextAfterRequest() => super.test_removeContextAfterRequest();