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This was originally done to be consistent with FunctionType, where the named parameters are sorted, but for FunctionNode it is not necessary. It causes issues for natives that expect parameters to be declared in a certain order. It is also an issue if we ever want to reuse the kernel format for summaries, where it is also preferable to present the named parameters in their original order. BUG= R=kmillikin@google.com Review URL: https://codereview.chromium.org/2527933002 .
A frontend using the Dart analyzer.