go/types: don't panic when checking a ListExpr in exprInternal
As an alternative to CL 312149, add a catch-all error message in
exprInternal when encountering a ListExpr, rather than panicking.
We still might want something like CL 312149 to improve the error
message or recovery from bad indexing.
Change-Id: I865f7cc4eefa4a3b7bd8f3100df96d0144e1712f
Reviewed-on: https://go-review.googlesource.com/c/go/+/313909
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>