pub const ANON_FN_PREFIX: &str = "<anon>";Expand description
Name prefix for the synthetic top-level function an anonymous function is
hoisted to. < is not a legal identifier character, so a hoisted name can
never collide with a user-written function.
Public because a frontend reading the function table has to tell the entries a person wrote from the ones the compiler made: an outline lists the first and leaves out the second.