tree 4369321237362c01502609601678a315053905c1
parent 5d0a4153b0bcc86c5a23310d5b648a587be3c56d
author Matt Stark <msta@google.com> 1754884340 +1000
committer GN LUCI <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1757565877 -0700

Avoid clashes of include_dir in rust-project.json.

In the event of a BUILD.gn file containing multiple crates:
```
# path/to/BUILD.gn
rust_library("foo") {
  sources = [..., "//gen/path/to/foo/foo.rs"]
}

rust_library("bar") {
  sources = [..., "//gen/path/to/bar/bar.rs"]
}
```

It would previously generate a rust-project.json containing an include
dir of `gen/path/to`. This means that rust-analyzer thought that foo
contains bar.rs and vice versa.

Now we generate the include_dir of `gen/path/to/foo` instead.

Change-Id: Iac4f87c42aa09339ebe01425fed6ed5b39c22747
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/19801
Reviewed-by: Takuto Ikuta <tikuta@google.com>
Commit-Queue: Takuto Ikuta <tikuta@google.com>