toString method
Returns a string representation of this object.
Implementation
@override
String toString() {
final buffer = StringBuffer("${Token.sourceFile}:$sourceFile")..writeln();
if (functions != null) buffer.writeln(functions);
if (branches != null) buffer.writeln(branches);
if (lines != null) buffer.writeln(lines);
buffer.write(Token.endOfRecord);
return buffer.toString();
}