internal/race,runtime: linkname contents of internal/race
Rather than importing runtime directly, linkname the functions from
runtime. This allows importing internal/race from internal/runtime/*
packages, similar to internal/asan and internal/msan.
For #54766.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest-swissmap
Change-Id: Ibd9644557782076e3cee7927c8a6e6d2909f0a6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/616458 Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@google.com>