[lworld+fp16] Integrated: Merge lworld

[Jatin Bhateja]

- Merge latest lworld into lworld+fp16
- Randomize input vectors for existing Float16 scalar intrinsic test.
- Fix min / max instruction sequence in x86 macro assembler.
- Remove redundant IR checks for ABS / NEGATE operation.

All Float16 and Valhalla test are passing with this merge.
Benchmarks performance is intact.

Best Regards,
Jatin

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Commit messages:
 - Merge branch 'lworld' of http://github.com/openjdk/valhalla into merge_lworld
 - Merge jdk
 - 8333189: Make sure clang on linux uses lld as linker
 - 8332919: SA PointerLocation needs to print a newline after dumping java thread info for JNI Local Ref
 - 8333013: Update vmTestbase/nsk/share/LocalProcess.java to don't use finalization
 - 8332259: JvmtiTrace::safe_get_thread_name fails if current thread is in native state
 - 8333149: ubsan : memset on nullptr target detected in jvmtiEnvBase.cpp get_object_monitor_usage
 - 8320999: RISC-V: C2 RotateLeftV
 - 8321543: Update NSS to version 3.96
 - 8331865: Consolidate size and alignment checks in LayoutPath
 - ... and 729 more: https://git.openjdk.org/valhalla/compare/0ce9f0fa...3298b00b

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld+fp16: https://webrevs.openjdk.org/?repo=valhalla&pr=1258&range=00.0
 - lworld: https://webrevs.openjdk.org/?repo=valhalla&pr=1258&range=00.1

Changes: https://git.openjdk.org/valhalla/pull/1258/files
  Stats: 203024 lines in 4173 files changed: 116983 ins; 63386 del; 22655 mod
  Patch: https://git.openjdk.org/valhalla/pull/1258.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1258/head:pull/1258

PR: https://git.openjdk.org/valhalla/pull/1258