git: openjdk/lilliput-jdk21u: created branch lilliput-2 based on the branch lilliput containing 28 unique commits

[duke]

The following commits are unique to the lilliput-2 branch:
========================================================
ad3dcad8: 8320304: Refactor and simplify monitor deflation functions
71b098aa: 8320317: ObjectMonitor NotRunnable is not really an optimization
c574ef46: 8326385: [aarch64] C2: lightweight locking nodes kill the box register without specifying this effect
9df16527: 8327383: Clean up _Stalled and _Spinner fields
fe5c5ae0: 8325303: Replace markWord.is_neutral() with markWord.is_unlocked()
29893a6e: 8330051: Small ObjectMonitor spinning code cleanups
f46953ea: 8330253: Remove verify_consistent_lock_order
81c48e11: 8323724: Remove potential re-inflation from FastHashCode under LM_LIGHTWEIGHT
ff192c5d: 8315884: New Object to ObjectMonitor mapping
7da40db5: 8335397: Improve reliability of TestRecursiveMonitorChurn.java
42a8650b: 8336148: Test runtime/locking/TestRecursiveMonitorChurn.java failed: Unexpected Inflation
b02b048e: 8311035: CDS should not use dump time JVM narrow Klass encoding to pre-compute Klass ids
244ffe3f: 8311870: Split CompressedKlassPointers from compressedOops.hpp
3a271ee0: 8307356: Metaspace: simplify BinList handling
ae009fe5: 8314654: Metaspace: move locking out of MetaspaceArena
874198c8: 8338929: Make Metaspace::deallocate space-aware
08ba5bfe: 8312018: Improve reservation of class space and CDS
50a56c5b: 8320382: Remove CompressedKlassPointers::is_valid_base()
bd734365: 8320368: Per-CPU optimization of Klass range reservation
36926e73: 8330578: The VM creates instance of abstract class VirtualMachineError
8e5726b3: 8338526: Don't store abstract and interface Klasses in class metaspace
0aa14767: 8340184: Bug in CompressedKlassPointers::is_in_encodable_range
75e83d4d: Tiny Class-Pointers
fcc1167a: Narrow sliding-forwarding
ab9be00f: 8320761: [Lilliput] Implement compact identity hashcode
d9ec65c8: 19 bit tiny classpointers
731f5f7f: Preserve old-space header when array-slicing
9266a2b5: 4-byte headers