[lworld] RFR: 8263900: [lworld] Make .default a separate node type in the parser.

[Srikanth Adayapalam]

On Sat, 20 Mar 2021 11:36:44 GMT, Jesper Steen Møller <jespersm at openjdk.org> wrote:

> To prepare for making .default a poly expression and to implement further logic, .default-expressions should be split off as a separate AST node.

Thanks Jesper, I will review this one and help you take it forward.

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PR: https://git.openjdk.java.net/valhalla/pull/370