internal/bytealg: extend memchr result correctly on wasm
The mem address should be regarded as uint32.
Fixes #65571
Change-Id: Icee38d11f2d93eeca7d50b2e133159e321daeb90
GitHub-Last-Rev:
c2568b104369bcf5c4d42c6281d235a52bb9675f
GitHub-Pull-Request: golang/go#68400
Reviewed-on: https://go-review.googlesource.com/c/go/+/597955
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>