Make exceptions propagate through multiple Future branches.

tests/co19/co19-runtime.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.
 
 # These tests either wrongly expect a compile-time error or wrongly reject a type error in production mode, co19 issue 282:
 [ $compiler == none && $runtime == vm ]
 Language/13_Libraries_and_Scripts/1_Imports_A03_t05: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A03_t08: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A03_t25: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A03_t28: Fail, OK
@@ skipping 334 matching lines @@
 LibTest/core/double/operator_subtraction_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/double/operator_truncating_division_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/double/remainder_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/double/toStringAsFixed_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/double/toStringAsPrecision_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/Duration/Duration_A03_t01: Fail, OK # co19 issue 316
 LibTest/core/Expect/approxEquals_A03_t01: Fail, OK # co19 issue 316
 LibTest/core/Expect/listEquals_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/Expect/setEquals_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/Expect/throws_A01_t03: Fail, OK # co19 issue 316
+LibTest/core/Future/chain_A03_t01: Fail, OK # co19 issue 328
 LibTest/core/Future/handleException_A01_t01: Fail, OK # co19 issue 316
 LibTest/core/Future/handleException_A01_t07: Fail, OK # co19 issue 316
 LibTest/core/Future/hasValue_A01_t01: Fail, OK # co19 issue 316
 LibTest/core/Future/isComplete_A01_t01: Fail, OK # co19 issue 316
 LibTest/core/Futures/wait_A03_t01: Fail, OK # co19 issue 316
 LibTest/core/Future/then_A01_t01: Fail, OK # co19 issue 316
 LibTest/core/Future/then_A01_t05: Fail, OK # co19 issue 316
+LibTest/core/Future/transform_A03_t01: Fail, OK # co19 issue 328
 LibTest/core/Future/value_A01_t03: Fail, OK # co19 issue 316
 LibTest/core/HashMap/HashMap.from_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/HashSet/HashSet.from_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/LinkedHashMap/LinkedHashMap.from_A02_t01: Fail, OK # co19 issue 316
 LibTest/core/List/addAll_A03_t01: Fail, OK # co19 issue 316
 LibTest/core/List/getRange_A05_t01: Fail, OK # co19 issue 316
 LibTest/core/List/insertRange_A07_t01: Fail, OK # co19 issue 316
 LibTest/core/List/length_A06_t01: Fail, OK # co19 issue 316
 LibTest/core/List/List.from_A03_t01: Fail, OK # co19 issue 316
 LibTest/core/List/removeRange_A06_t01: Fail, OK # co19 issue 316
@@ skipping 170 matching lines @@
 
 
 [ $compiler == none && $runtime == vm && $mode == debug ]
 LibTest/isolate/isolate_api/spawnFunction_A02_t01: Crash
 
 [ $compiler == none && $arch == simarm ]
 *: Skip
 
 [ $compiler == none && $arch == arm ]
 *: Skip