[jdk11u-dev] RFR: 8249781: AArch64: AOT compiled code crashes if C2 allocates r27

[Dmitry Chuyko]

This is a post-fix for JDK-8242449.
Original patch has been adjusted to use Universe::narrow_ptrs_base() instead of CompressedOops::ptrs_base() (no JDK-8223136).

This PR is a combination of JDK-8233743 + JDK-8242449 + JDK-8249781.

Testing: tier1, tier2 (aarch64).

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Commit messages:
 - [PATCH] Backport 22006dceb4e13299b9213720d2298039c57a7882
 - [PATCH] Backport f51088e261707d060ac1da11d44d6286fce0e46b
 - [PATCH] Backport e2644b70cfd7358d9c8cb22666c3a32876dcc8ff

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/138/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=138&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249781
  Stats: 289 lines in 4 files changed: 73 ins; 174 del; 42 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/138.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/138/head:pull/138

PR: https://git.openjdk.java.net/jdk11u-dev/pull/138