[jdk11u-dev] RFR: 8224853: CDS address sanitizer errors

[Aleksey Shipilev]

This is the unclean backport, because the affected `ReadClosure` and `WriteClosure` moved around for CDS work in later JDKs.

Additional testing: 
 - [x] Linux x86_64 `fastdebug`, `--enable-asan`, `-XX:+DumpSharedSpaces` tests (used to fail, now pass)
 - [x] Linux x86_64 `fastdebug`, `runtime/cds` tests (still pass)

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Commit messages:
 - 8224853: CDS address sanitizer errors

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/97/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=97&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8224853
  Stats: 15 lines in 3 files changed: 13 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/97.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/97/head:pull/97

PR: https://git.openjdk.java.net/jdk11u-dev/pull/97