dart2js cps: Support function types in 'is' and 'as' operators.

tests/compiler/dart2js_extra/dart2js_extra.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 ]
 16407_test: Fail # Issue 16407
 23432_test: Fail # Issue 23432
 class_test: Fail
 statements_test: Fail
 typed_locals_test: Fail
@@ skipping 50 matching lines @@
 deferred_fail_and_retry_test: SkipByDesign # Uses eval to simulate failed loading.
 deferred_fail_and_retry_worker_test: SkipByDesign # Uses eval to simulate failed loading.
 
 [ $host_checked && $compiler == dart2js && $cps_ir ]
 21724_test: Crash # Please triage this failure.
 
 [ $compiler == dart2js && $cps_ir ]
 12320_test: Crash # (switch (x){case 0:l...  Unhandled node
 16407_test: Pass # Please triage this failure.
 17094_test: RuntimeError # Please triage this failure.
-21666_test: Crash # Instance of 'TypeOperator': type check unimplemented for fInt.
 22868_test: Crash # (main()async{var clo...  cannot handle async/sync*/async* functions
 22895_test: Crash # (main()async{var clo...  cannot handle async/sync*/async* functions
-22917_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-23264_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-23486_test/03: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 async_stacktrace_test/asyncStar: Crash # (runTests()async{awa...  cannot handle async/sync*/async* functions
 async_stacktrace_test/none: Crash # (runTests()async{awa...  cannot handle async/sync*/async* functions
-bailout8_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 bound_closure_interceptor_type_test: Crash # Instance of 'TypeOperator': type check unimplemented for IntToT<String>.
-checked_accessor_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 closure4_test: RuntimeError # Please triage this failure.
 closure_capture5_test: Crash # (i=0): For-loop variable captured in loop header
-code_motion_exception_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-conditional_send_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-constant_javascript_semantics2_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-constant_javascript_semantics3_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-deferred/deferred_class_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
+deferred/deferred_class_test : RuntimeError # TypeError: Z.loadLibrary is not a function
 deferred/deferred_constant2_test: RuntimeError # U.loadLibrary is not a function
 deferred/deferred_constant3_test: RuntimeError # Y.loadLibrary is not a function
 deferred/deferred_constant4_test: RuntimeError # B.loadLibrary is not a function
-deferred/deferred_function_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
+deferred/deferred_function_test : RuntimeError # TypeError: E.loadLibrary is not a function
 deferred/deferred_mirrors1_test: RuntimeError # U.loadLibrary is not a function
 deferred/deferred_overlapping_test: RuntimeError # E.loadLibrary is not a function
-inference_nsm_mirrors_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-inferrer_is_int_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-interface_type_optimization_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_field_access2_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_field_access3_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_field_access4_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_field_access_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_invoke2_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_invoke3_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_invalid_invoke_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirror_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirrors_declarations_filtering_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 mirrors_used_closure_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-mirrors_used_native_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-no_such_method_mirrors_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-reflect_native_types_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-regress/4492_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-regress/4515_1_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-regress/4515_2_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-regress/4740_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 switch_test/none: Crash # (switch (val){}): Unhandled node
-this_phi_elimination_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 type_constant_switch_test/none: Crash # (switch (v){}): Unhandled node