Variants auto completion when enums are references

[pksunkara]

If a is of type A:

• When I type A, I get A and A::Foo
• When I type F, I get A::Foo

But as you can see from above image, if a is of type &A (same issue with &mut A):

• When I type A, I get A
• When I type F, I get neither

[Veykril]

Relevant code should be here https://github.com/rust-analyzer/rust-analyzer/blob/e8c803937ce23a6cf74583ad03f9868869c7eea1/crates/completion/src/completions/unqualified_path.rs#L42-L44

The problem is that the call to as_adt will fail if the expected type is behind a reference.