dart2js cps: Introduce some built-in operators in type propagation.

tests/compiler/dart2js_extra/dart2js_extra.status

Index: tests/compiler/dart2js_extra/dart2js_extra.status
diff --git a/tests/compiler/dart2js_extra/dart2js_extra.status b/tests/compiler/dart2js_extra/dart2js_extra.status
index 552c4d990babef4e11908db4b58220cd38886b18..6a02d5cc9eba0cb0396b246c44f838238b44aa6d 100644
--- a/tests/compiler/dart2js_extra/dart2js_extra.status
+++ b/tests/compiler/dart2js_extra/dart2js_extra.status
@@ -79,6 +79,7 @@ async_stacktrace_test/none: Crash # (runTests()async{awa...  cannot handle async
 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 # Bug in PullIntoInitializers
 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.
@@ -111,7 +112,6 @@ regress/4492_test: Crash # Instance of 'TypeOperator': type check unimplemented
 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.
-super_constructor1_test: RuntimeError # Please triage this failure.
 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