[lworld] RFR: Merge jdk

[David Simms]

Merge tag 'jdk-16+13' into lworld_merge_jdk_16_13
Added tag jdk-16+13 for changeset fd07cdb26fc7

# Conflicts:
#	src/hotspot/share/jvmci/jvmciCodeInstaller.cpp
#	src/hotspot/share/oops/instanceKlass.cpp
#	src/hotspot/share/oops/klass.hpp
#	src/hotspot/share/oops/markWord.hpp
#	src/hotspot/share/runtime/synchronizer.cpp

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

Commit messages:
 - Merge tag 'jdk-16+13' into lworld_merge_jdk_16_13
 - 8230918: j.l.NASE in javap
 - 8251093: Improve C1 register allocator logging and debugging support
 - 8252037: Optimized build is broken
 - 8244386: convert runtime/Safepoint/AssertSafepointCheckConsistency tests to gtest
 - 8250598: Hyper-V is detected in spite of running on host OS
 - 8252259: AArch64: Adjust default value of FLOATPRESSURE
 - 8252108: Modify nsk/stress/stack tests to check page size
 - 8252291: C2: Assignment in conditional in loopUnswitch.cpp
 - 8252290: Remove unused enum in CallGenerator
 - ... and 54 more: https://git.openjdk.java.net/valhalla/compare/321ea1de...19ce6a83

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.java.net/?repo=valhalla&pr=177&range=00.0
 - jdk: https://webrevs.openjdk.java.net/?repo=valhalla&pr=177&range=00.1

Changes: https://git.openjdk.java.net/valhalla/pull/177/files
  Stats: 8271 lines in 437 files changed: 6313 ins; 1371 del; 587 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/177.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/177/head:pull/177

PR: https://git.openjdk.java.net/valhalla/pull/177