x/sys/windows: introduce Pointer type and use it instead of uintptr

[perillo]

Commit 4869ec0 (syscall: introduce Pointer type and use it instead of uintptr) has not been backported to the golang/x/sys/windows package.

I don't know if this is an oversight or a feature.

[bcmills]

CC: @aclements (commit author); @alexbrainman and @bradfitz for sys/windows.

This is closely tied to #24820.

[alexbrainman]

We need to careful about using newly introduced in go1.11 syscall.Pointer in golang.org/x/sys/windows package. Some people might decide to build the package with previous versions of Go, and that will fail.

Otherwise we should fix golang.org/x/sys/windows too.

Alex

[bcmills]

Perhaps a type alias with a build constraint would be appropriate?

[alexbrainman]

Perhaps a type alias with a build constraint would be appropriate?

I just copied code from CL 106275. Hopefully this works for you too.

Alex

[gopherbot]

Change https://golang.org/cl/118797 mentions this issue: windows: replace uintptr in crypto structs