go/internal/gcimporter: always call SetTParams, even if empty
This resolves an outstanding TODO to be consistent about calling
SetTParams.
Done in both go/internal/gcimporter and cmd/compile/internal/importer.
Change-Id: Ief642efe016f02bab1bab960f6731a0ac0a8ad28
Reviewed-on: https://go-review.googlesource.com/c/go/+/347389
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>