VM segfaults when trying to run old snapshot

[nex3]

When the most recent VM (1.6.0-edge.39101) tries to run the attached snapshot, it segfaults. This snapshot was generated from

    void main() => print("HELLO");

using the 1.5.0-dev.4.1 x64 Linux VM.

To support issue issue #20482 and issue #20483, it would be ideal if the VM would detect an outdated snapshot and fail in some well-specified way (with a detectable exit code and/or message).

---

Attachment:
test.snapshot (600 Bytes)

[fsc8000]

Added Duplicate label.
Marked as being merged into #15982.