| Index: tools/testing/dart/compiler_configuration.dart
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| diff --git a/tools/testing/dart/compiler_configuration.dart b/tools/testing/dart/compiler_configuration.dart
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| index fc1d536e0e0f649d5a505dc54ddb237e28e9e9f6..9ec90f002715c64f17edc836b5500d806c110f8e 100644
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| --- a/tools/testing/dart/compiler_configuration.dart
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| +++ b/tools/testing/dart/compiler_configuration.dart
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| @@ -155,7 +155,12 @@ class NoneCompilerConfiguration extends CompilerConfiguration {
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|        List<String> sharedOptions,
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|        List<String> originalArguments,
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|        CommandArtifact artifact) {
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| -    return <String>[]
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| +    List<String> args = [];
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| +    if (isChecked) {
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| +      args.add('--enable_asserts');
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| +      args.add('--enable_type_checks');
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| +    }
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| +    return args
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|          ..addAll(vmOptions)
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|          ..addAll(sharedOptions)
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|          ..addAll(originalArguments);
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| @@ -315,6 +320,10 @@ class AnalyzerCompilerConfiguration extends CompilerConfiguration {
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|        CommandBuilder commandBuilder,
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|        List arguments,
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|        Map<String, String> environmentOverrides) {
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| +    arguments = new List.from(arguments);
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| +    if (isChecked) {
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| +      arguments.add('--enable_type_checks');
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| +    }
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|      return new CommandArtifact(
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|          <Command>[
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|              commandBuilder.getAnalysisCommand(
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| 
 |