RFR: 8301377: adjust timeout for JLI GetObjectSizeIntrinsicsTest.java subtest again

[Daniel D. Daugherty]

Trivial fixes to increase timeouts for tests that timeout under heavy stress:
[JDK-8301377](https://bugs.openjdk.org/browse/JDK-8301377) adjust timeout for JLI GetObjectSizeIntrinsicsTest.java subtest again
[JDK-8305502](https://bugs.openjdk.org/browse/JDK-8305502) adjust timeouts in three more M&M tests
[JDK-8302607](https://bugs.openjdk.org/browse/JDK-8302607) increase timeout for ContinuousCallSiteTargetChange.java

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Commit messages:
 - 8302607: adjust timeout for compiler/jsr292/ContinuousCallSiteTargetChange.java
 - 8305502: adjust timeouts in three more M&M tests
 - 8301377: adjust timeout for JLI GetObjectSizeIntrinsicsTest.java subtest again

Changes: https://git.openjdk.org/jdk/pull/13593/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13593&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301377
  Stats: 9 lines in 5 files changed: 0 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/13593.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13593/head:pull/13593

PR: https://git.openjdk.org/jdk/pull/13593