| Index: pkg/compiler/lib/src/typechecker.dart
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| diff --git a/pkg/compiler/lib/src/typechecker.dart b/pkg/compiler/lib/src/typechecker.dart
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| index 74831e16b511b106549f0bb19f3c9ebef3d76d43..3149368ab80c4f9e516d4824196ec90aed3dfba5 100644
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| --- a/pkg/compiler/lib/src/typechecker.dart
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| +++ b/pkg/compiler/lib/src/typechecker.dart
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| @@ -685,8 +685,7 @@ class TypeCheckerVisitor extends Visitor<DartType> {
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|        assert(invariant(node, element != null,
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|            message: 'Missing element for identifier'));
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|        assert(invariant(
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| -          node,
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| -          element.isVariable || element.isParameter || element.isField,
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| +          node, element.isVariable || element.isParameter || element.isField,
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|            message: 'Unexpected context element ${element}'));
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|        return element.computeType(resolution);
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|      }
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| 
 |