Update language.status and rewrite some tests

tests/language/language_dart2js.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.
 
 [ $compiler == dart2js || $compiler == dart2dart ]
 compile_time_constant_c_test/none: Fail # Map literal with int key.
 constructor_initializer_test: Fail, OK # Depends on ?parameter check.
 null_test/03: Fail # Issue 12445.
 
 black_listed_test/none: Fail # Issue 12446.
@@ skipping 146 matching lines @@
 # The following tests are all negative tests that should be fixed.
 #
 const_constructor_syntax_test/04: Fail # Issue 12900
 const_syntax_test/01: Fail # Issue 12932
 const_syntax_test/02: Fail # Issue 12932
 const_syntax_test/03: Fail # Issue 12932
 const_syntax_test/04: Fail # Issue 12932
 constructor9_test/01: Fail # Issue 12934
 constructor_return_test/01: Fail # Issue 12937
 constructor_return_test/02: Fail # Issue 12937
-constructor_return_with_arrow_negative_test: Fail # Negative language test.
-constructor_return_with_init_and_arrow_negative_test: Fail # Negative language test.
-constructor_return_with_init_negative_test: Fail # Negative language test.
-duplicate_implements_test/01: Fail # Negative language test.
-duplicate_implements_test/02: Fail # Negative language test.
-duplicate_implements_test/03: Fail # Negative language test.
-duplicate_implements_test/04: Fail # Negative language test.
-instantiate_type_variable_negative_test: Pass  # For the wrong reason.
-list_literal1_negative_test: Fail # Negative language test.
-map_literal1_negative_test: Fail # Negative language test.
+constructor_return_test/03: Fail # Issue 12937
+constructor_return_test/04: Fail # Issue 12938
+constructor_return_test/05: Fail # Issue 12938
+duplicate_implements_test/01: Fail # Issue 12991
+duplicate_implements_test/02: Fail # Issue 12991
+duplicate_implements_test/03: Fail # Issue 12991
+duplicate_implements_test/04: Fail # Issue 12991
+list_literal1_test/01: Fail # Issue 12993
+map_literal1_test/01: Fail # Issue 12993
 number_identifier_negative_test: Fail # Negative language test.
 scope_negative_test: Fail # Negative language test.
 static_final_field_negative_test: Fail # Negative language test.
 throw7_negative_test: Fail # Negative language test.
 
 numbers_test: Fail, OK # (unintended?) VM specific test.
 
 final_syntax_test/01: Fail # Missing error for uninitialized final field.
 final_syntax_test/02: Fail # Missing error for uninitialized final field.
 final_syntax_test/03: Fail # Missing error for uninitialized final field.
@@ skipping 116 matching lines @@
 const_syntax_test/03: Fail # Issue 12933
 const_syntax_test/04: Fail # Issue 12933
 const_syntax_test/05: Fail # Issue 12933
 const_syntax_test/06: Fail # Issue 12933
 const_syntax_test/07: Fail # Issue 12933
 const_syntax_test/08: Fail # Issue 12933
 const_syntax_test/10: Fail # Issue 12933
 constructor9_test/01: Fail # Issue 12935
 constructor_return_test/01: Fail # Issue 12938
 constructor_return_test/02: Fail # Issue 12938
+constructor_return_test/03: Fail # Issue 12938
+constructor_return_test/04: Fail # Issue 12938
+constructor_return_test/05: Fail # Issue 12938
 constructor_named_arguments_test/01: Fail # Issue 5519
 final_syntax_test/01: Fail # Issue 5519
 final_syntax_test/02: Fail # Issue 5519
 final_syntax_test/03: Fail # Issue 5519
 final_syntax_test/04: Fail # Issue 5519
 getter_no_setter_test/01: Fail # Issue 5519
 named_parameters_aggregated_test/01: Fail # Issue 12802
 named_parameters_aggregated_test/03: Fail # Issue 12813
 not_enough_positional_arguments_test/01: Fail # Issue 12839
 not_enough_positional_arguments_test/02: Fail # Issue 12839
 not_enough_positional_arguments_test/05: Fail # Issue 12839
 
 metadata_test: Fail # Issue 12762
 const_var_test: Pass, Fail # Issue 12794
 map_literal3_test: Fail # Issue 12794
 # Common problems with dart2js.  In illegal family, invalid
 # declarations are simply not parsed.  In pseudo kw dart2js
 # chokes on things like typedef(x) => "typedef $x" and alike.
 pseudo_kw_test: Fail
 external_test/11: Fail # Issue 12888
 external_test/12: Fail # Issue 12888
 external_test/13: Fail # Issue 12888
 external_test/21: Fail # Issue 12888
 external_test/22: Fail # Issue 12888
 external_test/23: Fail # Issue 12888
 external_test/30: Fail # Issue 12888
 external_test/31: Fail # Issue 12888
 lazy_static3_test: Fail # Issue 12593
 # dart2js frontend doesn't even analyse problematic classes.
-duplicate_implements_test/01: Fail
-duplicate_implements_test/02: Fail
-duplicate_implements_test/03: Fail
-duplicate_implements_test/04: Fail
+duplicate_implements_test/01: Fail # Issue 12992
+duplicate_implements_test/02: Fail # Issue 12992
+duplicate_implements_test/03: Fail # Issue 12992
+duplicate_implements_test/04: Fail # Issue 12992
+list_literal1_test/01: Fail # Issue 12993
+map_literal1_test/01: Fail # Issue 12993
 method_override4_test: Fail # Issue 12810
 method_override5_test: Fail # Issue 12810
 static_final_field_negative_test: Fail
 # Bug in dart2js parser: it happily parses 1is int; variable declaration.
 number_identifier_negative_test: Fail
 # Common with language_dart2js.
 factory_redirection_test/01: Fail # Issue 12753
 factory_redirection_test/02: Crash # Issue 12753
 factory_redirection_test/03: Crash # Issue 12753
 factory_redirection_test/07: Fail # Issue 12753
@@ skipping 46 matching lines @@
 import_core_prefix_test: Pass
 prefix22_test: Pass
 invocation_mirror_test: Fail, OK # Issue 12706 (hardcoded names).
 super_call4_test: Fail, OK # hardcoded names.
 
 [ $minified ]
 stack_trace_test: Fail, OK # Stack trace not preserved in minified code.
 
 [ $runtime == ie9 ]
 stack_trace_test: Fail, OK # Stack traces not available in IE9.