[dev.regabi] cmd/compile: add explicit file name in types generation

[dev.regabi] cmd/compile: add explicit file name in types generation

The stringer using `go list` for the type detection, which depends on
GOROOT. Unfortunally by changing GOROOT to develop path will raise
version mismatch with internal packages.

Update #43369

Change-Id: Id81334ea5f1ecdbfa81eb2d162944d65664ce727
Reviewed-on: https://go-review.googlesource.com/c/go/+/280572
Trust: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>