Reverting 15221

tests/corelib/future_test.dart

Index: tests/corelib/future_test.dart
diff --git a/tests/corelib/future_test.dart b/tests/corelib/future_test.dart
index 1916dddfeddb9e0b68c331cf44b5835a13689713..9ed1db54ed8a38e398b61fb2691a54d1067b8f12 100644
--- a/tests/corelib/future_test.dart
+++ b/tests/corelib/future_test.dart
@@ -565,92 +565,6 @@ testTransformExceptionReturnsAFuture() {
   Expect.equals("transformed value", transformedFuture.value);
 }
 
-// Tests for branching exceptions
-
-testExceptionTravelsAlongBothBranches() {
-  var results = <int>[];
-
-  var completer = new Completer();
-  var branch1 = completer.future.transform((_) => null);
-  var branch2 = completer.future.transform((_) => null);
-
-  branch1.handleException((e) {
-    results.add(1);
-    return true;
-  });
-
-  branch2.handleException((e) {
-    results.add(2);
-    return true;
-  });
-
-  completer.completeException("error");
-  Expect.setEquals([1, 2], results);
-}
-
-testExceptionTravelsAlongBothBranchesAfterComplete() {
-  var results = <int>[];
-
-  var completer = new Completer();
-  completer.completeException("error");
-
-  var branch1 = completer.future.transform((_) => null);
-  var branch2 = completer.future.transform((_) => null);
-
-  branch1.handleException((e) {
-    results.add(1);
-    return true;
-  });
-
-  branch2.handleException((e) {
-    results.add(2);
-    return true;
-  });
-
-  Expect.setEquals([1, 2], results);
-}
-
-testExceptionIsHandledInBaseAndBranch() {
-  var results = <String>[];
-
-  var completer = new Completer();
-  var branch = completer.future.transform((_) => null);
-
-  completer.future.handleException((e) {
-    results.add("base");
-    return true;
-  });
-
-  branch.handleException((e) {
-    results.add("branch");
-    return true;
-  });
-
-  completer.completeException("error");
-  Expect.setEquals(["base", "branch"], results);
-}
-
-testExceptionIsHandledInBaseAndBranchAfterComplete() {
-  var results = <String>[];
-
-  var completer = new Completer();
-  completer.completeException("error");
-
-  var branch = completer.future.transform((_) => null);
-
-  completer.future.handleException((e) {
-    results.add("base");
-    return true;
-  });
-
-  branch.handleException((e) {
-    results.add("branch");
-    return true;
-  });
-
-  Expect.setEquals(["base", "branch"], results);
-}
-
 main() {
   testImmediate();
   testNeverComplete();
@@ -691,8 +605,4 @@ main() {
   testTransformExceptionThrows();
   testTransformExceptionReturns();
   testTransformExceptionReturnsAFuture();
-  testExceptionTravelsAlongBothBranches();
-  testExceptionTravelsAlongBothBranchesAfterComplete();
-  testExceptionIsHandledInBaseAndBranch();
-  testExceptionIsHandledInBaseAndBranchAfterComplete();
 }