Merge #10563

10563: feat: Make "Generate getter" assist use semantic info r=agluszak a=agluszak

This PR makes "Generate getter" assist use semantic info instead of dealing with types encoded as strings.
Getters for types which are:
- `Copy` no longer return references
- `AsRef<str>` (i.e. `String`) return `&str` (instead of `&String`)
- `AsRef<[T]>` (i.e. `Vec<T>`) return `&[T]` (instead of `&Vec<T>`)
- `AsRef<T>` (i.e. `Box<T>`) return `&T` (instead of `&Box<T>`)
- `Option<T>` return `Option<&T>` (instead of `&Option<T>`)
- `Result<T, E>` return `Result<&T, &E>` (instead of `&Result<T, E>`)

String, Vec, Box and Option were previously handled as special cases.

Closes #10295


Co-authored-by: Andrzej Głuszak <gluszak.andrzej@gmail.com>

crates/ide/src/hover/tests.rs

@@ -2268,8 +2268,8 @@ fn foo() {
                                     file_id: FileId(
                                         1,
                                     ),
-                                    full_range: 254..436,
-                                    focus_range: 293..299,
+                                    full_range: 276..458,
+                                    focus_range: 315..321,
                                     name: "Future",
                                     kind: Trait,
                                     description: "pub trait Future",