Generate checks for all callers in OffHeap when inlining Unsafe.CAS

When inlining `Unsafe.compareAndSwap` (`compareAndSet`) while using
OffHeap ignore the special callers cases which skips generating
checks for inlining.

The special callers require OffHeap array checks but no low-tag
checks, the different treatment of that will be coded into
`createUnsafeCASCallDiamond` later on.

Signed-off-by: Abdulrahman Alattas <rmnattas@gmail.com>

Author: rmnattas

runtime/compiler/optimizer/InlinerTempForJ9.cpp

@@ -2620,6 +2620,10 @@ TR_J9InlinerPolicy::inlineUnsafeCall(TR::ResolvedMethodSymbol *calleeSymbol, TR:
       case TR::sun_misc_Unsafe_compareAndSwapObject_jlObjectJjlObjectjlObject_Z:
          if (callNode->isSafeForCGToFastPathUnsafeCall())
             return false;
+#if defined (J9VM_GC_ENABLE_SPARSE_HEAP_ALLOCATION)
+         if(TR::Compiler->om.isOffHeapAllocationEnabled())
+            return createUnsafeCASCallDiamond(callNodeTreeTop, callNode);
+#endif /* J9VM_GC_ENABLE_SPARSE_HEAP_ALLOCATION */
          switch (callerSymbol->castToMethodSymbol()->getRecognizedMethod())
             {
             case TR::java_util_concurrent_ConcurrentHashMap_addCount: