Function add_binding_names 

pub fn add_binding_names(names: &'static [(&'static str, &'static str)])

Append one crate’s (name, ext) slice. Companion to set_bindings_dispatch / set_extra_bindings_dispatch — call alongside dispatcher registration so find_file can resolve compile-time bindings. Duplicates are deduplicated by pointer so repeated calls from the same crate don’t inflate the fallback pool.