Revert "Use a single file for app snapshots."

tools/testing/dart/runtime_configuration.dart

 // Copyright (c) 2014, 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.
 
 library runtime_configuration;
 
-import 'dart:io' show Platform;
-
 import 'compiler_configuration.dart' show CommandArtifact;
 
 // TODO(ahe): Remove this import, we can precompute all the values required
 // from TestSuite once the refactoring is complete.
 import 'test_suite.dart' show TestSuite;
 
 import 'test_runner.dart' show Command, CommandBuilder;
 
 // TODO(ahe): I expect this class will become abstract very soon.
 class RuntimeConfiguration {
@@ skipping 220 matching lines @@
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
       Map<String, String> environmentOverrides) {
     String script = artifact.filename;
     String type = artifact.mimeType;
     if (script != null && type != 'application/dart-snapshot') {
       throw "dart_app cannot run files of type '$type'.";
     }
 
-    var args = new List();
-    args.addAll(arguments);
-    args.removeLast();
-    args.add("${artifact.filename}/out.jitsnapshot");
+    var augmentedArgs = new List();
+    augmentedArgs.add("--run-app-snapshot=${artifact.filename}");
+    if (useBlobs) {
+      augmentedArgs.add("--use-blobs");
+    }
+    augmentedArgs.addAll(arguments);
 
     return <Command>[
       commandBuilder.getVmCommand(suite.dartVmBinaryFileName,
-          args, environmentOverrides)
+          augmentedArgs, environmentOverrides)
     ];
   }
 }
 
 class DartPrecompiledRuntimeConfiguration extends DartVmRuntimeConfiguration {
   final bool useBlobs;
   DartPrecompiledRuntimeConfiguration({bool useBlobs}) : useBlobs = useBlobs;
 
   List<Command> computeRuntimeCommands(
       TestSuite suite,
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
       Map<String, String> environmentOverrides) {
     String script = artifact.filename;
     String type = artifact.mimeType;
     if (script != null && type != 'application/dart-precompiled') {
       throw "dart_precompiled cannot run files of type '$type'.";
     }
 
-    var args = new List();
-    args.addAll(arguments);
-    args.removeLast();
-    args.add("${artifact.filename}/out.aotsnapshot");
+    var augmentedArgs = new List();
+    augmentedArgs.add("--run-app-snapshot=${artifact.filename}");
+    if (useBlobs) {
+      augmentedArgs.add("--use-blobs");
+    }
+    augmentedArgs.addAll(arguments);
 
     return <Command>[
       commandBuilder.getVmCommand(suite.dartPrecompiledBinaryFileName,
-          args, environmentOverrides)
+          augmentedArgs, environmentOverrides)
     ];
   }
 }
 
 class DartPrecompiledAdbRuntimeConfiguration
       extends DartVmRuntimeConfiguration {
   final bool useBlobs;
   DartPrecompiledAdbRuntimeConfiguration({bool useBlobs}) : useBlobs = useBlobs;
 
   List<Command> computeRuntimeCommands(
@@ skipping 24 matching lines @@
 class DummyRuntimeConfiguration extends DartVmRuntimeConfiguration {
   List<Command> computeRuntimeCommands(
       TestSuite suite,
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
       Map<String, String> environmentOverrides) {
     throw "Unimplemented runtime '$runtimeType'";
   }
 }