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cmd/go2go: unification panic when type switching on uninstantiated type #40057
The following program panics when unifying instead of complaining about the type switch on the uninstantiated generic type.
The panic traceback is:
Possibly related to Crash 24 and/or Crash 25 in #39634 (comment).
In the current playground, all three of Crash 24, Crash 25, and @rogpeppe's example in this issue all crash in an assert in
However, the call stacks leading up to the failing assert are a bit different.
Crash 24 & 25: