cmd/go: go vet should tell cmd/vet the names of .s files #27665
Description
$ go version
go version devel +c5d38b896d Thu Aug 23 06:10:48 2018 +0000 linux/amd64
$ go list -f {{.SFiles}} math/big
[arith_amd64.s]
$ go vet -x math/big
...
cat >$WORK/b001/vet.cfg << 'EOF' # internal
{
"Dir": "/home/adonovan/go/src/math/big",
"ImportPath": "math/big",
"GoFiles": [
"/home/adonovan/go/src/math/big/accuracy_string.go",
...,
],
...,
}
EOF
...
Some vet checks, such as asmdecl and buildtag, apply equally to the Go files and non-Go files of a package. However, the .cfg file that go vet passes to cmd/vet does not mention them, so these checks are incomplete or ineffective.
The .cfg file should contain a field NonGoFiles that lists the package source files written in assembly, C, Fortran, and all the other benighted languages.