| Index: dart/lib/compiler/implementation/ssa/optimize.dart
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| diff --git a/dart/lib/compiler/implementation/ssa/optimize.dart b/dart/lib/compiler/implementation/ssa/optimize.dart
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| index 44f876d806c5c6e18492c99ad109574164e5fc20..3a28edb0c76a1331a715faf9433e5eeaf4ca959f 100644
 | 
| --- a/dart/lib/compiler/implementation/ssa/optimize.dart
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| +++ b/dart/lib/compiler/implementation/ssa/optimize.dart
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| @@ -455,7 +455,7 @@ class SsaConstantFolder extends HBaseVisitor implements OptimizationPhase {
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|      HType leftType = types[left];
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|      if (leftType.isExact()) {
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|        HBoundedType type = leftType;
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| -      Element element = type.lookupMember(Elements.OPERATOR_EQUALS);
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| +      Element element = type.lookupMember(const SourceString('=='));
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|        if (element !== null) {
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|          // If the left-hand side is guaranteed to be a non-primitive
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|          // type and and it defines operator==, we emit a call to that
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| 
 |