staticFieldSnapshotOwner property
OPEN B.9 — when this environment is the top execution scope of a static
member, it holds snapshots of the owner class's static fields so that
bare-identifier reads resolve without a class prefix. This marker records
the owning class so that a bare-identifier write to one of those
snapshotted fields can be propagated back to the class's authoritative
static slot (InterpretedClass.setStaticField). Without it, the write
would only mutate the discarded local snapshot and never survive the call.
Only set on the static-member execution environment itself; a shadowing local declared in a nested block lives in a different (unmarked) environment, so the propagation stays shadow-safe.
Implementation
InterpretedClass? staticFieldSnapshotOwner;