cmd/compile: internal compiler error: panic with range over integer value [1.21 backport]

[gopherbot]

@griesemer requested issue #67141 to be considered for backport to the next 1.21 minor release.

@gopherbot please consider this for backport to 1.22 and 1.21.

[griesemer]

Closing again as infeasible. Files versions where not actively tracked by types2 in Go 1.21.