cmd/cgo: allow DW_TAG_variable's with no name
https://reviews.llvm.org/
D123534 is emitting DW_TAG_variable's
that don't have a DW_AT_name. This is allowed in the DWARF
standard. It is adding DIE's for string literals for better
symbolization on buffer overlows etc on these strings. They
no associated name because they are not user provided variables.
Fixes #53000
Change-Id: I2cf063160508687067c7672cef0517bccd707d7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/406816
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>