8374293: Jshell throws an error and crashes when using keyword Public

[Korov]

jdk.jshell.SourceCodeAnalysis#highlights should not return overlapping highlights, so use TreeSet for deduplication and sorting.

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Progress

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Issue

• JDK-8374293: Jshell throws an error and crashes when using keyword Public (Bug - P3)

Reviewing

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$ git fetch https://git.openjdk.org/jdk.git pull/29018/head:pull/29018
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Update a local copy of the PR:
$ git checkout pull/29018
$ git pull https://git.openjdk.org/jdk.git pull/29018/head

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$ git pr checkout 29018

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/29018.diff

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[bridgekeeper]

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (81b82f5f)