Auto merge of #10466 - hi-rustin:rustin-patch-tree, r=weihanglo

Auto merge of #10466 - hi-rustin:rustin-patch-tree, r=weihanglo

Don't treat host/target duplicates as duplicates

### What does this PR try to resolve?

close https://github.com/rust-lang/cargo/issues/9519

Don't treat host/target duplicates as duplicates.

### How should we test and review this PR?

- Unit test.
- Create a manifest where a dependency shows up as both a normal dependency and a build-dependency. Run `cargo tree -d --target x86_64-unknown-linux-gnu`