RFR: 8287076: Document.normalizeDocument() produces different results

[Joe Wang]

On Wed, 22 Jun 2022 20:01:58 GMT, Joe Wang <joehw at openjdk.org> wrote:

> Fix a regression in Document.normalizeDocument() caused by a change in JDK 10.
> 
> Test: new test (as in the bug report) and Tier2 passed.

Thanks Lance. Updated the patch, also changed the corresponding nodes.

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PR: https://git.openjdk.org/jdk19/pull/59