RFR: 8274605: Fix predicate guarantees on returned values in (Doc)SourcePositions

[Jan Lahoda]

On Thu, 30 Sep 2021 19:31:11 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

> Please review this documentation change. The result might look verbose, but at least it is no longer confusing.

Looks reasonable to me.

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Marked as reviewed by jlahoda (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5781