Merge #10202
10202: fix: Type param hover shows correct sized bounds. r=flodiebold a=iDawer
Closes #9949
This adds implicit `: Sized` bound to type parameters at lowering step.
Hovering on type parameter does not show it's `: Sized` bound be it set explicitly or implicitly. This is because it doesn't track that the bound was set implicitly.
### Perf
```rust
./target/rust-analyzer-baseline-3dae94bf -q analysis-stats --memory-usage .
Database loaded: 4.51s, 311minstr, 110mb (metadata 1.08s, 22minstr, 743kb; build 3.20s, 8730kinstr, -237kb)
crates: 38, mods: 770, decls: 17173, fns: 12835
Item Collection: 29.63s, 85ginstr, 372mb
exprs: 353460, ??ty: 364 (0%), ?ty: 232 (0%), !ty: 144
Inference: 118.25s, 284ginstr, 601mb
Total: 147.88s, 370ginstr, 973mb
./target/rust-analyzer-hover-ty-param-dfb15292 -q analysis-stats --memory-usage .
Database loaded: 4.53s, 311minstr, 110mb (metadata 1.10s, 22minstr, 743kb; build 3.20s, 8672kinstr, -189kb)
crates: 38, mods: 770, decls: 17173, fns: 12835
Item Collection: 29.59s, 85ginstr, 372mb
exprs: 353460, ??ty: 364 (0%), ?ty: 232 (0%), !ty: 144
Inference: 121.69s, 296ginstr, 601mb
Total: 151.28s, 382ginstr, 974mb
```
Co-authored-by: Dawer <7803845+iDawer@users.noreply.github.com>
317059985a