git: openjdk/leyden: premain: Keep cached strings longer. Fix ExternalsRecorder::print_statistics()

[duke]

Changeset: 7f633b95
Branch: premain
Author:    Vladimir Kozlov <vladimir.kozlov at oracle.com>
Date:      2024-08-23 12:41:39 +0000
URL:       https://git.openjdk.org/leyden/commit/7f633b95c03ff824fbb243f5b463a25682d061d8

Keep cached strings longer. Fix ExternalsRecorder::print_statistics()

! src/hotspot/share/code/SCCache.cpp
! src/hotspot/share/code/oopRecorder.cpp