Prints the whole AST on the CORBA format for records, e.g.:
record Absyn.PROGRAM
classes = ...,
within_ = ...,
end Absyn.PROGRAM;
function getAstAsCorbaString input String fileName = "<interactive>"; output String result "returns the string if fileName is interactive; else it returns ok or error depending on if writing the file succeeded"; end getAstAsCorbaString;