RFR: 8354887: Preserve runtime blobs in AOT code cache [v6]

[Ashutosh Mehra]

> [8350209](https://bugs.openjdk.org/browse/JDK-8350209) introduced the framework for storing code in aot code cache and used it for caching i2c/c2i adapters.
> This PR extends the `AOTCodeCache` infrastructure and stores various runtime blobs (shared blobs, C1 and C2 runtime blobs) in the AOT code cache. It adds a new diagnostic flag `AOTStubCaching` to enable/disable the caching of these blobs.
> `AOTCodeFlags.java` test is extended to cover `AOTStubCaching`.

Ashutosh Mehra has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 18 commits:

 - Merge branch 'master' into preserve-runtime-blobs-master
 - Address Vladimir's comments
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Update test to make it more resilient
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Remove more unused code
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Fix whitespace issue. Remove unused code.
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Add test for using AOTCodeCache with different CompressedOops
   configuration
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Add check for compressed oops base address; minor refacotring
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Merge branch 'master' into preserve-runtime-blobs-master
 - Address Vladimir's comments
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Remove irrelevant comment
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - ... and 8 more: https://git.openjdk.org/jdk/compare/d1543429...5d7c3aa0

-------------

Changes: https://git.openjdk.org/jdk/pull/25019/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25019&range=05
  Stats: 1360 lines in 31 files changed: 1100 ins; 125 del; 135 mod
  Patch: https://git.openjdk.org/jdk/pull/25019.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25019/head:pull/25019

PR: https://git.openjdk.org/jdk/pull/25019