Revert "Add native_testing library to mock @Native classes"

tests/html/html.status

 # Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 interactive_test: Skip # Must be run manually.
 cross_frame_test: Skip # Test reloads itself. Issue 18558
 
 [ $compiler == none && ($runtime == dartium || $runtime == drt) ]
 
 mirrors_js_typed_interop_test: Fail # Missing expected failure (Issue 25044)
 js_typed_interop_side_cast_exp_test: Fail, OK # tests dart2js-specific behavior.
 js_typed_interop_type1_test: Fail, OK # tests dart2js-specific behavior.
 js_typed_interop_type2_test: Fail, OK # tests dart2js-specific behavior.
 js_typed_interop_type3_test: Fail, OK # tests dart2js-specific behavior.
 
 native_gc_test: Skip # Dartium JSInterop failure
-js_interop_constructor_name_test/HTMLDivElement-methods: Fail # Investigate.
-js_interop_constructor_name_test/HTMLDivElement-types: Fail # ditto
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium ) ]
 worker_api_test: Fail # Issue 10223
 resource_http_test: Fail # Issue 24203
 js_function_getter_trust_types_test: Skip # dartium doesn't support trust types.
 websocket_test/supported: Skip # Dartium 45 roll timesout
 
 [ $compiler == none && $mode == debug && ($runtime == drt || $runtime == dartium ) ]
 datalistelement_test: Skip # Issue 20540
 
 [ $compiler == dart2js ]
 input_element_test/attributes: Fail # Issue 21555
 wrapping_collections_test: SkipByDesign # Testing an issue that is only relevant to Dartium
 js_typed_interop_default_arg_test/default_value: MissingCompileTimeError # Issue #25759
 mirrors_js_typed_interop_test: Pass, Slow
 js_type_test/dynamic-null-not-Foo: Fail  # Issue 26838
 js_type_test/dynamic-String-not-Foo: Fail  # Issue 26838
 js_type_test/dynamic-String-not-dynamic-Foo: Fail  # Issue 26838
-js_interop_constructor_name_test/HTMLDivElement-types-erroneous1: Fail # Issue 26838
-js_interop_constructor_name_test/HTMLDivElement-types-erroneous2: Fail # Issue 26838
+
 
 [ $compiler == dart2js && $checked ]
 js_function_getter_trust_types_test: Skip # --trust-type-annotations incompatible with --checked
 
 [ $compiler == dart2js && $csp && $browser ]
 custom/js_custom_test: Fail # Issue 14643
 custom/element_upgrade_test: Fail # Issue 17298
 
 [ $compiler == dart2js && $browser ]
 custom/created_callback_test: Fail # Support for created constructor. Issue 14835
@@ skipping 402 matching lines @@
 # These are raw dart:js tests that fail due to bugs in the CPS IR:
 js_test/Dart_functions: RuntimeError # Tree-shaking an escaping closure #25720
 
 [ $compiler == dart2js && $cps_ir && $host_checked ]
 js_typed_interop_default_arg_test/none: Crash # Issue 25911
 js_typed_interop_default_arg_test/default_value: Crash # Issue 25911
 js_typed_interop_default_arg_test/explicit_argument: Crash # Issue 25911
 
 [ $compiler == dart2js && $cps_ir && $checked ]
 *: Skip # `assert` not implemented