dart2js: Bugfix for when 'await' occurs in an initializer list.

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 ]
 sync_generator2_test/07: MissingCompileTimeError # Issue 22324
 sync_generator2_test/08: MissingCompileTimeError # Issue 22324
 sync_generator2_test/10: MissingCompileTimeError # Issue 22324
 getter_setter_in_lib_test: Fail # Issue 23288
 
@@ skipping 253 matching lines @@
 async_return_types_test/wrongTypeParameter: Crash # cannot handle sync*/async* functions
 async_star_await_pauses_test: Crash # (await for(var i in ...  await for
 async_star_cancel_and_throw_in_finally_test: Crash # (foo()async*{try {in...  cannot handle sync*/async* functions
 async_star_cancel_while_paused_test: Crash # (f()async*{list.add(...  cannot handle sync*/async* functions
 async_star_regression_2238_test: Crash # (f()async*{label1:label2:yield 0;}): cannot handle sync*/async* functions
 async_star_regression_23116_test: Crash # (Stream<int> foo(Com...  cannot handle sync*/async* functions
 async_star_regression_fisk_test: Crash # (fisk()async*{res.ad...  cannot handle sync*/async* functions
 async_star_stream_take_test: Crash # (Stream makeStream(i...  cannot handle sync*/async* functions
 async_star_take_reyield_test: Crash # (fivePartialSums(Str...  cannot handle sync*/async* functions
 async_star_test: Crash # (f()async*{}): cannot handle sync*/async* functions
-async_this_bound_test: RuntimeError # Cannot read property 'set$f' of undefined
 asyncstar_concat_test: Crash # (concat(a,b)async*{yield* a;yield* b;}): cannot handle sync*/async* functions
 asyncstar_throw_in_catch_test: Crash # (foo4(Tracer tracer)...  cannot handle sync*/async* functions
 asyncstar_yield_test: Crash # (Stream<int> foo4()a...  cannot handle sync*/async* functions
 asyncstar_yieldstar_test: Crash # (foo2(Stream subStream)async*{yield* subStream;}): cannot handle sync*/async* functions
 await_for_cancel_test: Crash # (await for(var x in controller.stream){for(int j=0;j<10;j++ ){if(j==5)continue outer;}}): await for
 await_for_test: Crash # (await for(var x in infiniteStream()){i++ ;if(i>10)break;t4.record(x);}): await for
 await_for_use_local_test: Crash # (await for(var v in s){accum+= v;}): await for
-await_future_test: RuntimeError # Cannot read property '_await_future_test$_box_0' of undefined
-await_postfix_expr_test: RuntimeError # Please triage this failure.
 await_regression_test: RuntimeError # "Obelix".then$1 is not a function
-await_test: RuntimeError # Cannot read property '$add' of undefined
 cha_deopt1_test: Crash # (d.make_u()): deferred access is not implemented
 cha_deopt2_test: Crash # (d.make_u()): deferred access is not implemented
 cha_deopt3_test: Crash # (d.make_u()): deferred access is not implemented
 closure_in_constructor_test: RuntimeError # Please triage this failure.
 closures_initializer_test: RuntimeError # Please triage this failure.
 constructor12_test: RuntimeError # Please triage this failure.
 crash_6725_test/01: Crash # unsupported operation on erroneous element
 deferred_call_empty_before_load_test: Crash # (lib1.thefun()): deferred access is not implemented
 deferred_closurize_load_library_test: RuntimeError # D.loadLibrary is not a function
 deferred_constant_list_test: RuntimeError # K.loadLibrary is not a function
@@ skipping 84 matching lines @@
 type_variable_field_initializer_closure_test: RuntimeError # Please triage this failure.
 type_variable_field_initializer_test: RuntimeError # Please triage this failure.
 type_variable_nested_test: RuntimeError # Please triage this failure.
 
 [ $compiler == dart2js && $cps_ir && $host_checked ]
 async_throw_in_catch_test/forceAwait: Crash # Issue 24485
 async_throw_in_catch_test/none: Crash # Issue 24485
 execute_finally9_test: Crash # Issue 24485
 regress_21795_test: Crash # Issue 24485
 regress_23537_test: Crash # Issue 24485