net/http/httptrace: compose ClientTrace without reflect
This is to enable use of package httptrace on TinyGo, which does not have an implementation of reflect.MakeFunc.
Change-Id: I4f1f94352797bfe3553c1c2d4d1d3dca44b03e43
GitHub-Last-Rev:
4587368ad875bd55e6a8cbdcd7e13738a8d02400
GitHub-Pull-Request: golang/go#69172
Reviewed-on: https://go-review.googlesource.com/c/go/+/609763
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sean Liao <sean@liao.dev>