| Index: tool/input_sdk/patch/core_patch.dart
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| diff --git a/tool/input_sdk/patch/core_patch.dart b/tool/input_sdk/patch/core_patch.dart
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| index b4dc3c794da8655336d661f98008c5db985c8006..55b7edb98daaf982330e9c566cc8c61a3a61806b 100644
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| --- a/tool/input_sdk/patch/core_patch.dart
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| +++ b/tool/input_sdk/patch/core_patch.dart
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| @@ -44,7 +44,8 @@ class Object {
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|    }
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|  
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|    @patch
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| -  Type get runtimeType => JS('Type', 'dart.objectRuntimeType(#)', this);
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| +  Type get runtimeType =>
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| +      JS('Type', 'dart.wrapType(dart.getReifiedType(#))', this);
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|  }
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|  
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|  // Patch for Function implementation.
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| 
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