"Find All References" doesn't work with "use X as Y" aliases

rust-analyzer version: rust-analyzer version: 0.0.0 (b3b9b53df 2024-02-29)

rustc version: rustc 1.78.0-nightly (42825768b 2024-03-08)

relevant settings: N/A, although I interact with rust-analyzer through VSCode if that's relevant. The extension version I'm using is 0.3.1418.

repository link (if public, optional): N/A

code snippet to reproduce:

struct Foo;
use Foo as FooRenamed;

struct Bar(FooRenamed);

Expected behaviour when invoking Find All References on FooRenamed is that the usage in Bar shows up. The actual behaviour is that direct usages of "Foo" are searched for, which does not include the usage in Bar.

In fact, the reference in Bar can't be found at all using Find All References, as searching for usages of Foo doesn't reveal it either.

Reproduce the Rust snippet and begin at rust-analyzer’s Find All References request path, then trace how use Foo as FooRenamed is represented during reference lookup. Add a regression test for the alias and verify that Find All References on FooRenamed includes the usage in Bar.