Function sum

tests/TestMembers.cpp:89–90

"class Test{\r\n\
int x, y;\r\n\
int sum(int x){ return x + y; }\r\n\
int sum(int x, ny){ y = ny; return sum(x); }\r\n\
}\r\n\
Test a;\r\n\
a.x = 14;\r\n\