commit 57d2ff39c71a8e76350255ccea87bbddb55c0f0b
author Josh Bleecher Snyder <josharian@gmail.com> Wed Mar 25 11:52:44 2015 -0700
committer Josh Bleecher Snyder <josharian@gmail.com> Mon Mar 30 17:57:25 2015 +0000
tree 4c13d2cb4fd8ec7500bcd2d0e6c91a2a26129b71
parent 0c09ff325ac41535a3d5fb6d539c32aca981bada

go/ast/astutil: match prefix segments when adding imports

AddImport and AddNamedImport attempt to place new
imports in roughly the correct place--and thus the
correct group--by matching prefixes. Matching prefixes
byte-by-byte led to "regexp" being grouped with "rsc.io/p".
Instead, match prefixes by segments.

Fixes golang/go#9961.

Change-Id: I52b7c58a9a2fbe85c2b5297e50c87d409364bda3
Reviewed-on: https://go-review.googlesource.com/8090
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>