cmd/compile: internal compiler error: panic: runtime error: index out of range [0] with length 0 [1.18 backport] #51855
Description
@mdempsky requested issue #51765 to be considered for backport to the next 1.18 minor release.
@gopherbot please backport to Go 1.18; this is a compiler bug that could theoretically lead to silent miscompilation of valid user code