Disambiguators are stripped off intra-doc link titles

rust-analyzer version: 0.3.1877-standalone (574e23ec5 2024-03-09)
rustc version: rustc 1.76.0 (07dca489a 2024-02-04)
relevant settings: Irrelevant to the issue.
repository link: luau-parser. Irrelevant to the issue.

code snippet to reproduce:

// This is an overly simplified version of it.

/// Some [function parameter](FunctionParameter)
pub struct FunctionParameter {}

Hover over FunctionParameters and read the doc comments, it displays:

The (reserved) keyword function is gone. I thought it was maybe because of the text being the same as that of the struct it's linking to, so for the sake of making sure, I tried another keyword:

/// Some [enum parameter](FunctionParameters)
pub struct FunctionParameters {}

And it gives exactly the same result. The word enum vanishes.

Some notes:

• The issue exists for inner doc comments too (//!).
• This is case sensitive; using Function or Enum makes it visible.
• This seems to work when having a different character there, for example function/parameter.
• It seems to work just fine with keywords like for and in, which means this may have been an intentional thing.

Start by reproducing the issue in rust-analyzer with the provided FunctionParameter and FunctionParameters Rust doc-comment examples, checking both outer and inner comments. Trace how intra-doc link titles are rendered on hover, and consider the issue done when reserved-word disambiguators such as function and enum remain visible while existing link behavior is preserved.