[master] RFR: Fix some tests to work with +UseCompressedClassPointers [v2]

[Roman Kennke]

> Some tests assume -UseCompressedClassPointers, but we're forcing +UseCompressedClassPointers, so let's fix those tests.
> 
> Testing:
>  - [x] tier1
>  - [x] tier2
>  - [x] jdk/jfr
>  - [x] testlibrary_tests/ir_framework/tests

Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:

  Special case in ObjectCountEventVerifier for 32 bits

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

Changes:
  - all: https://git.openjdk.java.net/lilliput/pull/19/files
  - new: https://git.openjdk.java.net/lilliput/pull/19/files/6ae58819..a4c410a6

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=lilliput&pr=19&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=lilliput&pr=19&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/lilliput/pull/19.diff
  Fetch: git fetch https://git.openjdk.java.net/lilliput pull/19/head:pull/19

PR: https://git.openjdk.java.net/lilliput/pull/19