Use the app snapshot when testing with -cdartk.

tools/testing/dart/compiler_configuration.dart

Index: tools/testing/dart/compiler_configuration.dart
diff --git a/tools/testing/dart/compiler_configuration.dart b/tools/testing/dart/compiler_configuration.dart
index 4b5be7d19e9a3911d971ee5d6734e9be0cda6277..274cb2faacd705cd47b1fe6ff4d5d4eb93496935 100644
--- a/tools/testing/dart/compiler_configuration.dart
+++ b/tools/testing/dart/compiler_configuration.dart
@@ -223,7 +223,7 @@ class NoneCompilerConfiguration extends CompilerConfiguration {
       CommandArtifact artifact) {
     List<String> args = [];
     if (useDFEIsolate) {
-      args.add('--dfe=utils/kernel-service/kernel-service.dart');
+      args.add('--dfe=$buildDir/gen/kernel-service.dart.snapshot');

[kustermann, 2017/02/01 08:48:06]

You should do the same in tools/testing/dart/test_runner.dart:


class BatchDFEProcess  {
  ...

  Future _startProcess() async {
    final executable = io.Platform.executable;
    final arguments = ['utils/kernel-service/kernel-service.dart', '--batch'];
    ...
  }
  ...
}

[Vyacheslav Egorov (Google), 2017/02/01 08:51:22]

That would not work because snapshot versions are not necessarily compatible.

[kustermann, 2017/02/01 08:56:15]

Good point.

If it was part of a normal dart sdk, we could have it next to the other
snapshots for our checked-in sdk, though:

$ ls tools/sdks/linux/dart-sdk/bin/snapshots 
analysis_server.dart.snapshot  dartanalyzer.dart.snapshot  dartdoc.dart.snapshot
 pub.dart.snapshot
utils_wrapper.dart.snapshot dart2js.dart.snapshot         
dartdevc.dart.snapshot      dartfmt.dart.snapshot

     }
     if (isChecked) {
       args.add('--enable_asserts');