| Index: sdk/lib/_internal/compiler/implementation/native_handler.dart
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| diff --git a/sdk/lib/_internal/compiler/implementation/native_handler.dart b/sdk/lib/_internal/compiler/implementation/native_handler.dart
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| index 58020b3590d2884e8dd46eefc7d9151cf436a18f..373f16e01f0482c238f2549719cbfe680e883cde 100644
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| --- a/sdk/lib/_internal/compiler/implementation/native_handler.dart
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| +++ b/sdk/lib/_internal/compiler/implementation/native_handler.dart
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| @@ -362,7 +362,7 @@ abstract class NativeEnqueuerBase implements NativeEnqueuer {
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|                                 cause,
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|                                 [String reason]) {
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|      Iterable matches = unusedClasses.where(predicate);
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| -    matches.toList().forEach((c) => enqueueClass(c, cause));
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| +    matches.forEach((c) => enqueueClass(c, cause));
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|    }
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|  
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|    onFirstNativeClass() {
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| 
 |