gofmt crashes on rewrite

[robpike]

What steps will reproduce the problem?
1.
create x.go

package main

func main() {
        _ := new(int)
}

2.

run gofmt -r 'new(a) -> make(*a)'


What is the expected output? What do you see instead?

It should do the rewrite; instead it crashes 

panic: runtime error: invalid memory address or nil pointer dereference

panic PC=0x313718
runtime.panic+0xb2 /Users/r/go/src/pkg/runtime/proc.c:1015
    runtime.panic(0x0, 0x3006a8)
panicstring+0x69 /Users/r/go/src/pkg/runtime/runtime.c:83
    panicstring(0x8eeb0, 0x332090)
sigpanic+0x148 /Users/r/go/src/pkg/runtime/darwin/thread.c:460
    sigpanic()
reflect.*PtrValue·PointTo+0x27 /Users/r/go/src/pkg/reflect/value.go:1062
    reflect.*PtrValue·PointTo(0x0, 0x4fd74, 0x32c5e0, 0xb7e01)
main.subst+0x338 /Users/r/go/src/cmd/gofmt/rewrite.go:227
    main.subst(0x32c600, 0x0, 0x0, 0x3249c0, 0x32c3e0, ...)
...


Please use labels and text to provide additional information.

This is at head.

[griesemer]

Comment 1:

I cannot reproduce this. It also looks very much like the bug that I fixed and submitted
yesterday (Revision: d29b500126,
https://code.google.com/p/go/source/detail?r=d29b5001260b4031b897f9c83b1046aa77989e35 ).
Please verify that you are running the latest version of the reflect package.

Status changed to WaitingForReply.

[robpike]

Comment 2:

i was at head when i reported it, but it's fixed now.

Status changed to Fixed.