RFR: 8368166: Media query should accept multiple rules

[Michael Strauß]

On Mon, 22 Sep 2025 23:10:13 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> Question: When I supply a stylesheet with two missing close braces, the master branch complains about `Expected RBRACE at [3,0]` to stderr, the code in this PR does not.

I've added some code that emits a parser error when a closing curly brace is missing.

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PR Comment: https://git.openjdk.org/jfx/pull/1915#issuecomment-3321919554