RFR: 8334779: Test compiler/c1/CanonicalizeArrayLength.java is timing out

[Vladimir Kozlov]

The timeout is cause by running the test with `-Xcomp -XX:+VerifyOops -XX:+PatchALot`.
The test continuously deoptimize and recompile `java.lang.Throwable::<init>` method.
`-XX:+VerifyOops ` adds a lot of external addresses because it use ExternallAddress for error messages.
These messages are unique for each call to `verify_oop()` because they are constructed locally.
I reduced number of loop iteration by 10 to get reasonable execution time (2 mins instead of 20 mins) and got next data:

Without VerifyOops:
  External addresses table: 38 entries

With VerifyOops:
  External addresses table: 125922 entries

Looks like most of the time VM is spending to grow/reallocate big growable array added by [JDK-8333819](https://bugs.openjdk.org/browse/JDK-8333819).
Before that change these addresses were recorded locally in nmethod's relocation info. When nmethod was deoptimized, its relocation info was discarded together with nmethod.

Only on x86 we declared message address as ExternalAddress. Aarch64 uses movptr() to store address as simple pointer. ARM uses own InlineAddress with RelocInfo::none type of relocation. I verified other platforms: none is using ExternalAddress.

I suggest to use AddressLiteral with RelocInfo::none for x86. With that the global table is small even with -XX:+VerifyOops:

  External addresses table: 42 entries


Tested tier1,  run test with corresponding flags to verify that time is similar to before [JDK-8333819](https://bugs.openjdk.org/browse/JDK-8333819)

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

Commit messages:
 - 8334779: Test compiler/c1/CanonicalizeArrayLength.java is timing out

Changes: https://git.openjdk.org/jdk/pull/19871/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19871&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8334779
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19871.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19871/head:pull/19871

PR: https://git.openjdk.org/jdk/pull/19871