Extract x_Driver tests that time out on Windows bots.

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 373b2dff8b3a37d90abd36c90b3732f5665e3b3e..b11bcb828eca0d99725d2324b53d504b43358631 100644
--- a/pkg/analyzer/test/generated/static_warning_code_test.dart
+++ b/pkg/analyzer/test/generated/static_warning_code_test.dart
@@ -16,7 +16,6 @@ import 'resolver_test_case.dart';
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(StaticWarningCodeTest);
-    defineReflectiveTests(StaticWarningCodeTest_Driver);
   });
 }
 
@@ -3714,21 +3713,3 @@ class S {
     assertErrors(source, [StaticWarningCode.VOID_RETURN_FOR_GETTER]);
   }
 }
-
-@reflectiveTest
-class StaticWarningCodeTest_Driver extends StaticWarningCodeTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-
-  @failingTest
-  @override
-  test_argumentTypeNotAssignable_ambiguousClassName() {
-    return super.test_argumentTypeNotAssignable_ambiguousClassName();
-  }
-
-  @failingTest
-  @override
-  test_importOfNonLibrary() {
-    return super.test_importOfNonLibrary();
-  }
-}