Implement type variable 'more specific than' and 'subtype'.

tests/language/language_analyzer.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 == dartanalyzer ]
 switch_bad_case_test/02: Fail # missing error in double in switch case expr; however there is contradiction - Object has ==, and double - not
 
 # Runtime negative test. No static errors or warnings.
 closure_call_wrong_argument_count_negative_test: skip
 
 # TBD: using built-in identifers
 built_in_identifier_prefix_test: fail # Issue 12694
 
 # TBD: these look like bad tests, no issue number
 class_literal_test: fail
 constructor_call_as_function_test/01: fail
 
-# TBF: It is a static type warning if a type parameter is a supertype of its upper bound.
-cyclic_type_variable_test/01: fail
-cyclic_type_variable_test/02: fail
-cyclic_type_variable_test/03: fail
-cyclic_type_variable_test/04: fail
-
-# TBF: It is a static type warning if any of the type arguments to k' are not subtypes of the bounds of the corresponding formal type parameters of type.
-default_factory2_test/01: fail # Issue 12701
-
 # TBF: It is a static warning if the function type of k' is not a subtype of the type of k.
 default_implementation2_test: fail
 
 # TBD: F-bounded quantification
 f_bounded_quantification_test/01: fail # Issue 12704
 f_bounded_quantification_test/02: fail # Issue 12704
 
 function_type_alias9_test/00: crash # Issue 11987
 
 list_literal_syntax_test/01: fail # Issue 12103
@@ skipping 10 matching lines @@
 # TBF: prefix T hidden by type variable T in 'new T.Class()'
 prefix10_negative_test: fail
 
 # TBF: no error if A in our library, B extends A in other library, reference B._private from Test extends B in our library.
 private_member1_negative_test: fail
 private_member2_negative_test: fail
 private_member3_negative_test: fail
 
 built_in_identifier_test/none: Fail # Issue 13023
 
-# TBF: I think _this_ test is incorrect, but we DO have problem bug with type variable subtype check
-redirecting_factory_malbounded_test/01: fail
+type_variable_conflict_test/01: Fail # Issue 13703
+type_variable_conflict_test/02: Fail # Issue 13703
+type_variable_conflict_test/03: Fail # Issue 13703
+type_variable_conflict_test/04: Fail # Issue 13703
+type_variable_conflict_test/05: Fail # Issue 13703
+type_variable_conflict_test/06: Fail # Issue 13703
+
+
 
 
 # test issue 10683, It is a compile-time error if e refers to the name v or the name v=.
 block_scope_test: fail
 lazy_static3_test: fail
 
 # test issue 11124, It is warning, not error to don't initialize final field
 field3a_negative_test: Fail # Issue 11124
 final_syntax_test/01: Fail # Issue 11124
 final_syntax_test/04: Fail # Issue 11124
@@ skipping 76 matching lines @@
 # test issue 12156, fails only at runtime
 static_call_wrong_argument_count_negative_test: fail
 
 throw7_test/01: Fail # Issue 12159
 
 # test issue 12160, not annotated warnings for type variables from static member
 type_parameter_test/none: fail
 # test issue 12161, type variable in static, malformed type, static warning
 type_variable_static_context_negative_test: fail
 
-# test issue 12162, 'a' has dynamic type, so it statically it is assignable to anything
-type_variable_bounds2_test/00: fail # Issue 12162
-type_variable_bounds2_test/01: fail # Issue 12162
-type_variable_bounds2_test/02: fail # Issue 12162
-type_variable_bounds2_test/03: fail # Issue 12162
-type_variable_bounds2_test/04: fail # Issue 12162
-type_variable_bounds2_test/06: fail # Issue 12162
-
 # test issue 12163, unresolved identifier is static warning in static context
 unresolved_in_factory_negative_test: fail # Issue 12163
 unresolved_top_level_var_negative_test: fail # Issue 12163
 
 # test issue 12191, ambiguous import is always warning now
 prefix3_negative_test: fail # Issue 12191
 
 # test issue 12289, assignment in assert statement
 type_error_test: fail # Issue 12289
 
@@ skipping 11 matching lines @@
 static_field_test/02: fail # Issue 12541
 static_field_test/03: fail # Issue 12541
 static_field_test/04: fail # Issue 12541
 
 # test issue 13787; duplicate exports of the same declaration is not handled
 duplicate_export_test: fail # Issue 13787
 
 # test issue 13916, Looks as no warning should be in this redirecting factory
 redirecting_factory_infinite_steps_test/01: fail
 
-type_variable_conflict_test/01: Fail # Issue 13703
-type_variable_conflict_test/02: Fail # Issue 13703
-type_variable_conflict_test/03: Fail # Issue 13703
-type_variable_conflict_test/04: Fail # Issue 13703
-type_variable_conflict_test/05: Fail # Issue 13703
-type_variable_conflict_test/06: Fail # Issue 13703
+# test issue 13956, It is a static type warning if any of the type arguments to k' are not subtypes of the bounds of the corresponding formal type parameters of type.
+default_factory2_test/none: fail
 
 [ $compiler == dartanalyzer && $checked ]
 factory1_test/00: fail
 factory1_test/01: fail
 field_type_check2_test/01: fail
 factory_implementation_test/00: fail
 factory_redirection_test/08: fail
 factory_redirection_test/09: fail
 factory_redirection_test/10: fail
 factory_redirection_test/11: fail
 factory_redirection_test/12: fail
 factory_redirection_test/13: fail
 factory_redirection_test/14: fail
 getters_setters2_test/03: fail
 type_variable_bounds3_test/00: fail
 type_variable_bounds2_test/05: fail