all: various build failures due to panic in go/types.(*StdSizes).Sizeof

[findleyr]

It looks like https://go.dev/cl/506856 broke a number of builders:

• the longtest builders: https://build.golang.org/log/650ad91ebfbe7343e44a6a0819e64d9b8e76687d
• the x/vuln builders: https://build.golang.org/log/0389e2a11d99490b666a1ddd1394e2c09a5ef2a1
• the x/exp builders: https://build.golang.org/log/5bf240db505bade1b08f8443ca1ef836c9db3abc

CC @cuonglm @griesemer

[cuonglm]

https://go-review.googlesource.com/c/go/+/520435 fixed longtest builders.

x/vuln and x/exp probably need to update golang.org/x/tools, too.

[gopherbot]

Change https://go.dev/cl/520555 mentions this issue: cmd: go get golang.org/x/tools@74c255b

[gopherbot]

Change https://go.dev/cl/520575 mentions this issue: all: go get golang.org/x/tools@74c255b

[cuonglm]

@findleyr Both CLs are submitted.

Should we close this now, or leave it open for others builders failure observation if any?

[findleyr]

Thanks for the quick fix! I'll close this once the builds pass.

[findleyr]

...which appears to have happened.