git: openjdk/leyden: premain: Validate preload code before publishing

[duke]

Changeset: ffb0c323
Author:    Vladimir Kozlov <vladimir.kozlov at oracle.com>
Date:      2024-01-03 16:34:33 +0000
URL:       https://git.openjdk.org/leyden/commit/ffb0c32338f785d1485c310006924413b290c7b8

Validate preload code before publishing

! src/hotspot/share/ci/ciEnv.cpp
! src/hotspot/share/code/SCCache.cpp
! src/hotspot/share/code/nmethod.cpp