tree bd9346292c6b1327a43ef1a51907a4cb21bfa816
parent de084187cbc154d9ef5e03d833bdb5ab49ee0f65
author msta <msta@google.com> 1784691626 +1000
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1785293005 -0700

Add label and toolchain method to TargetRef trait.

This requires a significant refactor to testutils, so while I was at it
I refactored the API of testutils to make it much cleaner.

In particular, we now store Rc<Session> instead of Session, allowing us
to persist a session across multiple steps of evaluation, just like real
scenarios (rule definition -> rule impl).

Bug: 528225104
Change-Id: Ibe57f137774a85477f889fff09f499436a6a6964
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/24221
Reviewed-by: Takuto Ikuta <tikuta@google.com>
Commit-Queue: Matt Stark <msta@google.com>