cmd/compile: regression of #38554 on tip

[cuonglm]

What version of Go are you using (go version)?

$ go version
go version devel +4c7a18d74a Thu Oct 22 01:20:16 2020 +0000 linux/amd64

Does this issue reproduce with the latest release?

No

What operating system and processor architecture are you using (go env)?

go env Output

$ go env

What did you do?

Build program in #38554

What did you expect to see?

Same binary size, ~2MB

What did you see instead?

Binary size increases to 512 MB.

Git bisect points to 289c238 cc @cherrymui

[gopherbot]

Change https://golang.org/cl/264138 mentions this issue: cmd/compile: fix wrong mark stmp and stkobj symbols as static

[gopherbot]

Change https://golang.org/cl/264337 mentions this issue: cmd/internal/obj: use correct symbols size for Hashed64 classification