yaml2obj used to require the Symbol field in relocations, but it hasn't done so for a couple of years. I am making a separate change to yaml2obj that will look up the symbol by name or index, if present, and emit an error if not found. This will mean that an explicit symbol reference (even to an empty-named symbol) that does not reference a symbol declared in the yaml will result in an error.
This patch updates tests that would otherwise start emitting errors.