fn process_usages(
ctx: &AssistContext<'_, '_>,
builder: &mut SourceChangeBuilder,
editioned_file_id: EditionedFileId,
references: Vec<FileReference>,
arg_to_remove: usize,
is_self_present: bool,
)fn process_usages(
ctx: &AssistContext<'_, '_>,
builder: &mut SourceChangeBuilder,
editioned_file_id: EditionedFileId,
references: Vec<FileReference>,
arg_to_remove: usize,
is_self_present: bool,
)