Introduce class TypeRef in the VM to fully support recursive types.

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 ]
 bad_constructor_test/05: CompileTimeError # Issue 13669
 malformed_test/05: MissingCompileTimeError # Issue 12695
 malformed_test/06: MissingCompileTimeError # Issue 12695
 full_stacktrace1_test: Pass, RuntimeError # Issue 12698
 full_stacktrace2_test: Pass, RuntimeError # Issue 12698
@@ skipping 64 matching lines @@
 malformed2_test/01: MissingCompileTimeError, OK
 generic_test: RuntimeError, OK
 named_parameters_type_test/01: MissingRuntimeError, OK
 named_parameters_type_test/02: MissingRuntimeError, OK
 named_parameters_type_test/03: MissingRuntimeError, OK
 positional_parameters_type_test/01: MissingRuntimeError, OK
 positional_parameters_type_test/02: MissingRuntimeError, OK
 issue13474_test: RuntimeError, OK
 
 [ $compiler == dart2js && $minified ]
+cyclic_type_test: Fail # Issue 12605.
 f_bounded_quantification4_test: Fail # Issue 12605.
 f_bounded_quantification5_test: Fail # Issue 12605.
 mixin_generic_test: Fail # Issue 12605.
 mixin_mixin2_test: Fail # Issue 12605.
 mixin_mixin3_test: Fail # Issue 12605.
 mixin_mixin4_test: Fail # Issue 12605.
 mixin_mixin5_test: Fail # Issue 12605.
 mixin_mixin6_test: Fail # Issue 12605.
 
 [ $compiler == dart2js ]
@@ skipping 96 matching lines @@
 method_invocation_test: Fail
 stack_overflow_test: Fail
 stack_overflow_stacktrace_test: Fail
 closure_call_wrong_argument_count_negative_test: Skip
 label_test: Skip
 
 
 [ $compiler == dart2dart ]
 regress_13494_test: Fail # Issue 13494
 malformed_test/none: CompileTimeError # Issue 12695
-mixin_regress_13688_test: RuntimeError # Issue 15244
 mixin_super_constructor_named_test: Fail # Issue 12631
 mixin_super_constructor_positionals_test: Fail # Issue 12631
 
 built_in_identifier_prefix_test: Fail # Issue 6972
 constructor_initializer_test/none: Fail # Issue 12633
 factory3_test: Fail # Issue 13077
 redirecting_factory_long_test: Fail # Issue 13077
 type_checks_in_factory_method_test: Fail # Issue 12747
 
 # Mixins fail on the VM.
@@ skipping 47 matching lines @@
 factory_redirection_test/02: Crash # Issue 12753
 factory_redirection_test/03: Crash # Issue 12753
 factory_redirection_test/09: Fail # Issue 12753
 
 malbounded_type_literal_test: Fail # Issue 13960
 
 # DartVM problem.
 constructor5_test: Fail
 constructor6_test: Fail
 closure_in_initializer_test: Fail
-f_bounded_equality_test: RuntimeError # Issue 14000
 
 # Minified mode failures.
 
 new_expression_type_args_test/00: Fail # Wrongly reports compile-time error.
 new_expression_type_args_test/01: Fail # Wrongly reports compile-time error.
 
 # Only checked mode reports an error on type assignment
 # problems in compile time constants.
 compile_time_constant_checked_test/02: Fail, OK
 compile_time_constant_checked2_test/01: Fail, OK
@@ skipping 10 matching lines @@
 compile_time_constant_checked3_test/06: Fail, OK
 malformed2_test/01: Fail, OK
 
 [ $compiler == dart2dart && $checked ]
 # Dart VM problems
 malbounded_type_cast_test: Fail # Issue 14123
 malbounded_type_test_test/01: Fail # Issue 14131
 malbounded_instantiation_test/01: Fail # Issue 14132
 
 [ $compiler == dart2dart && $minified ]
+cyclic_type_test: Fail # Issue 12605.
 super_getter_setter_test: Fail # Issue 11065.
 f_bounded_quantification4_test: Fail # Issue 12605.
 f_bounded_quantification5_test: Fail # Issue 12605.
 many_overridden_no_such_method_test: Pass, Fail # Issue 13078
 overridden_no_such_method_test: Pass, Fail # Issue 13078
 no_such_method_test: Pass, Fail # Issue 13078
 
 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.
 
 [ $compiler == dart2js && $host_checked ]
 const_factory_with_body_test/01: Crash