RFR: 8327098: GTest needs larger combination limit

[Kelvin Nilsen]

The current value of LogSelectionList::MaxSelections is too small, causing GTest failures.  This increases the value from 256 to 320.

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Commit messages:
 - Increase value of LogSelectionList::MaxSelections
 - Merge branch 'openjdk:master' into master
 - Merge branch 'openjdk:master' into master
 - Merge branch 'openjdk:master' into master
 - Merge branch 'openjdk:master' into master
 - Merge branch 'openjdk:master' into master
 - Merge branch 'openjdk:master' into master
 - Revert "Improve documentation of how Evac-OOM Protocol works"
 - Merge branch 'openjdk:master' into master
 - Improve documentation of how Evac-OOM Protocol works

Changes: https://git.openjdk.org/jdk/pull/18083/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18083&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327098
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18083.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18083/head:pull/18083

PR: https://git.openjdk.org/jdk/pull/18083