stage1: Fix crash in *[N]T to []T conversion with zst

Prevent the crash by not making the codegen try to access the
non-existing ptr field in the slice.

Closes #6951
288b8b535fLemonBoy committed on 11/27/2020, 10:34:13 PM· committed by Andrew Kelleyparent36b8f5d
2 files changedLine totals unavailable