Allow self referencing typedefs (issue 2490).

tests/language/language.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.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 # In order to maintain maximum test coverage for all builds,
 # please use the following procedure to mark a test
 # failed on architectures other than the one you are working on.
@@ skipping 252 matching lines @@
 constructor6_test: Fail    # Parse failure in initializers.
 execute_finally6_test: Fail
 expect_test: Fail
 fauxverride_test/03: Fail
 fauxverride_test/05: Fail
 field3_negative_test: Fail  # Issue 729
 final_param_negative_test: Fail
 for2_test: Fail
 function_syntax_test: Fail
 function_test: Fail
-function_type_alias_negative_test: Fail
+function_malformed_result_type_test: Fail
 function_type_alias_test: Fail
 function_type_alias2_test: Fail
 function_type_alias3_test: Fail
 function_type_alias4_test: Fail
+function_type_alias6_test: Fail
 function_type_parameter2_test: Fail
 function_type_parameter_test: Fail
 generic_deep_test: Fail
 generic_instanceof_test: Fail
 generic_instanceof2_test: Fail
 generic_syntax_test: Fail
 generic_test: Fail
 generics_test: Fail
 getter_closure_execution_order_test: Pass # TODO(jmesserly): I don't think this is really passing in the static case
 implicit_scope_test: Fail
@@ skipping 195 matching lines @@
 constructor6_test: Fail # Closures inside initializers not implemented.
 default_factory_library_test: Fail # lib is not a type
 dynamic_test: Fail # cannot resolve type F1
 factory3_test: Fail # internal error: visitIs for type variables not implemented
 function_literals2_test: Fail # Closures inside initializers not implemented.
 function_syntax_test: Fail # Closures inside initializers not implemented.
 function_test: Fail # internal error: Closures inside initializers not implemented
 function_type_alias2_test: Fail # cannot resolve type f1
 function_type_alias3_test: Fail # cannot resolve type F
 function_type_alias4_test: Fail # cannot resolve type F
+function_type_alias6_test: Fail # visitIs for typedefs not implemented
 function_type_alias_test: Fail # cannot resolve type Fun
 function_type_parameter2_test: Fail # Internal Error: expected optional parameters
 function_type_parameter_test: Fail # Internal Error: expected optional parameters
 generic_instanceof_test: Fail # cannot resolve type T
 generic_instanceof2_test: Fail # fails an instance of test at run time
 generic_instanceof3_test: Fail # cannot handle generics.
 generic_test: Fail # cannot resolve type T
 get_set_syntax_test/none: Fail # Parsing of pseudo keywords.
 getters_setters_test: Fail # Internal Error: SsaBuilder.visitIdentifier on non-this
 implicit_scope_test: Fail # duplicate definition of a="bar"
@@ skipping 168 matching lines @@
 
 list_test: Fail, OK # Obsolete test uses List.copyFrom that was removed on 2011-10-31.
 
 final_syntax_test/none: Fail, OK # Uses deprecated "StrConstant + StrConstant".
 
 [ $compiler == dart2js && $mode == release ]
 assign_top_method_negative_test: Crash
 
 [ $compiler == dart2js && $runtime == none ]
 *: Fail, Pass # TODO(ahe): Triage these tests.