RFR: 8376402: Dependencies::print_statistics() and AbstractClassHierarchyWalker::print_statistics() are not called from PRODUCT code

[Matthias Baesken]

Dependencies::print_statistics() and AbstractClassHierarchyWalker::print_statistics() are not called from PRODUCT code but seems they still end up in the product build JVM, at least when using standard build settings.
(This can be observed when enabling link time gc and verbose info printing - in this case the methods are eliminated).

linuxx86_64
product build without those methods

ls -alL images/jdk/lib/server/libjvm.so
size 2.859.5144


unchanged product build :

ls -alL images/jdk/lib/server/libjvm.so
size 2.859.9464


(so we see a little size difference)

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Commit messages:
 - JDK-8376402

Changes: https://git.openjdk.org/jdk/pull/29449/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29449&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376402
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/29449.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29449/head:pull/29449

PR: https://git.openjdk.org/jdk/pull/29449