reflect: add Pointer

[bradfitz]

Per chat elsewhere, reflect.Ptr is weird and doesn't match reflect.UnsafePointer or unsafe.Pointer.

Proposal: add reflect.Pointer matching reflect.Ptr.

Likewise reflect.PtrTo -> reflect.PointerTo probably.

[gopherbot]

Change https://golang.org/cl/341333 mentions this issue: refect: rename Ptr Kind to Pointer (but keep Ptr)

[rsc]

Seems reasonable to me.

[robpike]

So you just want Pointer to point to Ptr?

[bradfitz]

@robpike, actually @rsc pointed out that he wanted it the other way: Ptr to point to Pointer. 😄

[earthboundkid]

FWIW, I was writing some reflect code a month or two back and had trouble remembering if I wanted Ptr or Pointer.

[rsc]

This proposal has been added to the active column of the proposals project
and will now be reviewed at the weekly proposal review meetings.
— rsc for the proposal review group

[rsc]

Based on the discussion above, this proposal seems like a likely accept.
— rsc for the proposal review group

[rsc]

No change in consensus, so accepted. 🎉
This issue now tracks the work of implementing the proposal.
— rsc for the proposal review group

[gopherbot]

Change https://golang.org/cl/358454 mentions this issue: all: use reflect.{Ptr,PtrTo}