| Index: pkg/compiler/lib/src/ssa/interceptor_simplifier.dart
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| diff --git a/pkg/compiler/lib/src/ssa/interceptor_simplifier.dart b/pkg/compiler/lib/src/ssa/interceptor_simplifier.dart
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| index a12a57efe1f1f40e9ed5aecfe7977ad9dd4ebd1e..752aeb9bd74aed65bb8456639f75cbca829aead9 100644
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| --- a/pkg/compiler/lib/src/ssa/interceptor_simplifier.dart
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| +++ b/pkg/compiler/lib/src/ssa/interceptor_simplifier.dart
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| @@ -49,7 +49,7 @@ class SsaSimplifyInterceptors extends HBaseVisitor
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|  
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|    BackendHelpers get helpers => backend.helpers;
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|  
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| -  ClassWorld get classWorld => compiler.world;
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| +  ClassWorld get classWorld => compiler.closedWorld;
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|  
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|    void visitGraph(HGraph graph) {
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|      this.graph = graph;
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| 
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