| Index: lib/src/codegen/side_effect_analysis.dart
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| diff --git a/lib/src/codegen/side_effect_analysis.dart b/lib/src/codegen/side_effect_analysis.dart
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| index 9b58c653d2324dce72a1f1f2eafcecbcdd1ebd2e..92b4ac8f280f73fb89851a3e3b619ffd5a4b9013 100644
 | 
| --- a/lib/src/codegen/side_effect_analysis.dart
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| +++ b/lib/src/codegen/side_effect_analysis.dart
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| @@ -51,7 +51,8 @@ bool isStateless(FunctionBody function, Expression node, [AstNode context]) {
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|  
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|  /// Returns true if the local variable is potentially mutated within [context].
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|  /// This accounts for closures that may have been created outside of [context].
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| -bool _isPotentiallyMutated(FunctionBody function, VariableElement e, [AstNode context]) {
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| +bool _isPotentiallyMutated(FunctionBody function, VariableElement e,
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| +    [AstNode context]) {
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|    if (function.isPotentiallyMutatedInClosure(e)) return true;
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|    if (function.isPotentiallyMutatedInScope(e)) {
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|      // Need to visit the context looking for assignment to this local.
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| 
 |