x/tools/gopls: translate go.work conflicting replacement errors to quickfixes or a command to run.

[hyangah]

What did you do?

Checkout kubernetes repo, and create a go.work file including all modules in the repo except those in vendor.
A better, simpler repro case can be constructed by creating a workspace with conflicting modules (I will take a look if I can create a simpler repro with gopls test setup later if gopls experts cannot help with it).

What did you expect to see?

Notifications popup with "Fix This" button :-) or
Diagnostics with quickfix associated.

What did you see instead?

Verbose error messages.

Go command is giving a specific command to run already. I wonder if we can parse the message, replace [override] part, and suggest it as a quickfix.

cc @findleyr @matloob

[hyangah]

I added a replace statement:

$ go work edit -replace sigs.k8s.io/json=sigs.k8s.io/json@v0.0.0-20211208200746-9f7c6b3444d2 
$ cat go.work
...
replace sigs.k8s.io/json => sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2

But gopls was still reporting the issue (load error notification didn't go away) until I restarted gopls.

[suiluj]

same problem. I don't know how to do the replace. Did you find a solution?