Unifying compiler context

tests/compiler/dart2js/dill_loader_test.dart

Index: tests/compiler/dart2js/dill_loader_test.dart
diff --git a/tests/compiler/dart2js/dill_loader_test.dart b/tests/compiler/dart2js/dill_loader_test.dart
index 9bf70242b4ff45f83cd25f485bb2fa17abcd6d5a..bbdb6260cfc8e3f3d9cd4845339b2e20c94ca550 100644
--- a/tests/compiler/dart2js/dill_loader_test.dart
+++ b/tests/compiler/dart2js/dill_loader_test.dart
@@ -52,8 +52,8 @@ main() {
       ..packagesFileUri = Platform.script.resolve('../../../.packages')
       ..compileSdk = true
       ..linkedDependencies = [platform]
-      ..verify = true
-      ..onError = errorHandler;
+      ..setExitCodeOnProblem = true
+      ..verify = true;
 
     List<int> kernelBinary =
         serializeProgram(await kernelForProgram(uri, options));
@@ -79,8 +79,3 @@ main() {
     Expect.isNotNull(member);
   });
 }
-
-void errorHandler(CompilationError e) {
-  exitCode = 1;
-  print(e.message);
-}