syscall: (*LazyProc).Call does not keep arguments alive (anymore) [1.12 backport]

[gopherbot]

@zx2c4 requested issue #34474 to be considered for backport to the next 1.12 minor release.

@gopherbot please backport this, because mis-compilations are dangerous and the fix appears to be a trivial single line fix.

[mdempsky]

For release manager FYI: this is a regression introduced in Go 1.8. The fix is straight forward and safe, and I expect backports cleanly to Go 1.12, but just thought I'd make sure that complies with our backport policy.

[av86743]

CL for #34474 is not finalized (indicated by Do-Not-Submit tag) - has to stage partial fix.

[FiloSottile]

By the backport policy, once this is fixed on a Go 1.13.x release, upgrading to that will be a valid workaround, so it does not qualify for backport to Go 1.12.x. (And anyway this is not a regression in Go 1.12.)

[zx2c4]

Whoops, I just neglected to mention "1.13" specifically to gobot. Sorry about that.