Fix null.runtimeType, reflect(null).type.superinterfaces, and reflect(null).getField.

tests/lib/lib.status

 # Copyright (c) 2012, 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.
 
 [ $checked && $compiler != dartanalyzer && $compiler != dart2analyzer && $runtime != dartium ]
 mirrors/regress_16321_test/01: CompileTimeError # Issue 16351
 
 [ $checked && $compiler == none && ($runtime == dartium || $runtime == drt) ]
 mirrors/regress_16321_test/01: RunTimeError # Issue 16351
 
@@ skipping 60 matching lines @@
 mirrors/metadata_allowed_values_test/11: MissingCompileTimeError # Issue 14548
 mirrors/metadata_allowed_values_test/13: MissingCompileTimeError # Issue 14548
 mirrors/metadata_allowed_values_test/14: MissingCompileTimeError # Issue 14548
 mirrors/method_mirror_name_test: RuntimeError # Issue 6335
 mirrors/method_mirror_properties_test: RuntimeError # Issue 11861
 mirrors/method_mirror_source_test : RuntimeError # Issue 6490
 mirrors/method_mirror_source_line_ending_test : RuntimeError # Issue 6490
 mirrors/mirrors_test: RuntimeError # TODO(ahe): I'm working on fixing this.
 mirrors/mixin_test: RuntimeError # Issue 12464
 mirrors/mixin_application_test/none: RuntimeError # Issue 12464
-mirrors/null_test : RuntimeError # Issue 12129
 mirrors/parameter_test/none: RuntimeError # Issue 6490
 mirrors/parameter_metadata_test: RuntimeError # Issue 10905
 mirrors/private_symbol_test: CompileTimeError # Issue 13597
 mirrors/proxy_type_test: RuntimeError # Issue 13842
 mirrors/redirecting_factory_test/none: RuntimeError # Issue 6490
 mirrors/redirecting_factory_test/02: RuntimeError # Issue 6490
 mirrors/relation_assignable_test: RuntimeError # Issue 6490
 mirrors/relation_subtype_test: RuntimeError # Issue 6490
 mirrors/relation_subclass_test: RuntimeError # Issue 6490
 mirrors/repeated_private_anon_mixin_app_test: RuntimeError # Issue 14670
 mirrors/symbol_validation_test: RuntimeError # Issue 13597
 mirrors/static_members_test: RuntimeError # Issue 14633, Issue 12164
 mirrors/synthetic_accessor_properties_test: RuntimeError # Issue 14633
 mirrors/toplevel_members_test: RuntimeError # Issue 14633, Issue 12164
 mirrors/typedef_test/none: RuntimeError # http://dartbug.com/6490
 mirrors/typedef_metadata_test: RuntimeError # Issue 12785
 mirrors/typevariable_mirror_metadata_test: CompileTimeError # Issue 10905
 mirrors/type_variable_owner_test/01: RuntimeError # Issue 12785
 mirrors/variable_is_const_test/none: RuntimeError # Issue 14671
 mirrors/variable_is_const_test/01: MissingCompileTimeError # Issue 5519
 mirrors/list_constructor_test/01: RuntimeError # Issue 13523
 mirrors/raw_type_test/01: RuntimeError # http://dartbug.com/6490
 mirrors/mirrors_reader_test: Slow, RuntimeError # Issue 16589
 
 [ $runtime == safari ]
 typed_data/setRange_2_test: Fail # Safari doesn't fully implement spec for TypedArray.set
 typed_data/setRange_3_test: Fail # Safari doesn't fully implement spec for TypedArray.set
 typed_data/setRange_4_test: Fail # Safari doesn't fully implement spec for TypedArray.set
 mirrors/to_string_test: Fail # Safari bug TODO(ahe): Add bug number if able to submit bug.
+mirrors/null_test: Fail # http://dartbug.com/16831
 
 [ $compiler == dart2js && $runtime == chromeOnAndroid ]
 typed_data/setRange_2_test: RuntimeError # TODO(dart2js-team): Please triage this failure.
 typed_data/setRange_3_test: RuntimeError # TODO(dart2js-team): Please triage this failure.
 mirrors/invoke_subscript_test: RuntimeError, Timeout # Issue 15610
 
 [ $compiler == dart2js && $runtime != jsshell && $runtime != safari && $runtime != ff && $runtime != ie9 && $runtime != ie10]
 math/math_test: RuntimeError
 math/math2_test: RuntimeError
 
@@ skipping 47 matching lines @@
 [ $compiler == dart2js ]
 convert/chunked_conversion_utf88_test: Slow, Pass
 convert/utf85_test: Slow, Pass
 
 
 [ $compiler == dart2js && $browser ]
 async/timer_not_available_test: Fail, OK # only meant to test when there is no way to
                                          # implement timer (currently only in d8)
 
 [ $compiler == dart2js && $minified ]
-mirrors/intercepted_superclass_test: RuntimeError # Issue 16389
+mirrors/intercepted_superclass_test: RuntimeError # Issue 16804
+mirrors/null_test/00: RuntimeError # Issue 16804. Please remove the multi-test comments when this test starts succeeding.
 
 [ $compiler == dart2dart ]
 mirrors/*: Skip # http://dartbug.com/11511
 async/schedule_microtask6_test: Fail             # Issue 10957 - may be related to issue 10910
 
 [ $compiler == dart2dart && $minified ]
 convert/json_lib_test: Fail                      # Issue 10961
 
 [ $compiler == dart2js && $minified ]
 mirrors/typedef_test/01: Fail # http://dartbug.com/6490
@@ skipping 89 matching lines @@
 
 mirrors/redirecting_factory_test/01: StaticWarning # test issue X, The return type 'Class<T2, T1>' of the redirected constructor is not assignable to 'Class<T1, T2>'
 mirrors/redirecting_factory_test/none: StaticWarning # test issue X, The return type 'Class<T2, T1>' of the redirected constructor is not assignable to 'Class<T1, T2>
 
 mirrors/fake_function_without_call_test: StaticWarning, OK # Implements Function without defining call.
 mirrors/find_in_context_fake_function_test: StaticWarning, OK # Implements Function without defining call.
 mirrors/immutable_collections_test: StaticWarning, OK # Expect failure for any type of Iterable.
 mirrors/inference_and_no_such_method_test: StaticWarning, OK # Expect to trigger noSuchMethod.
 mirrors/repeated_private_anon_mixin_app_test: StaticWarning, OK # Intentional library name conflict.
 mirrors/removed_api_test: StaticWarning, OK # Deliberately refers to undeclared members.