fn keyword_hints(
sema: &Semantics<'_, RootDatabase>,
token: &SyntaxToken,
parent: SyntaxNode,
edition: Edition,
display_target: DisplayTarget,
) -> KeywordHintfn keyword_hints(
sema: &Semantics<'_, RootDatabase>,
token: &SyntaxToken,
parent: SyntaxNode,
edition: Edition,
display_target: DisplayTarget,
) -> KeywordHint