Move tools to tool folder.

utils/kernel-service/kernel-service.dart

 // Copyright (c) 2016, 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.
 
 /// This is an interface to the Dart Kernel parser and Kernel binary generator.
 ///
 /// It is used by the kernel-isolate to load Dart source code and generate
 /// Kernel binary format.
 ///
 /// This is either invoked as the root script of the Kernel isolate when used
@@ skipping 46 matching lines @@
       print("DFE: platformKernel: ${platformKernel}");
     }
 
     options = new CompilerOptions()
       ..strongMode = strongMode
       ..fileSystem = fileSystem
       ..target = new VmFastaTarget(new TargetFlags(strongMode: strongMode))
       ..packagesFileUri = packagesUri
       ..sdkSummary = platformKernel
       ..verbose = verbose
-      ..throwOnErrors = false
       ..reportMessages = true
       ..onError = (CompilationMessage e) {
         if (e.severity == Severity.error) {
           // TODO(sigmund): support emitting code with errors as long as they
           // are handled in the generated code (issue #30194).
           errors.add(e.message);
         }
       };
   }
 
@@ skipping 283 matching lines @@
   _CompilationCrash(this.exception, this.stack);
 
   @override
   Status get status => Status.crash;
 
   @override
   String get errorString => "${exception}\n${stack}";
 
   String toString() => "_CompilationCrash(${errorString})";
 }