tree 5718424e0b7ca5ec2d74b41ece276672489c717e
parent 1a83a0b54880dd62aaf82968d7cdd83007ecc60e
author Ian Cottrell <iancottrell@google.com> 1520543410 -0500
committer Brad Fitzpatrick <bradfitz@golang.org> 1523908432 +0000

imports: extract fastWalk into new package internal/fastwalk

It is going to be used by a new tool.
Moved to an internal package so it does not become a publicly supported
api.
Modified the tests so they don't depend on the fix_test infrastructure.

Change-Id: Ib8ebef24dc23e180960af04aa3d06b5f41a7c02b
Reviewed-on: https://go-review.googlesource.com/99678
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>