/*a*/
for (x in y); //b //c

for (x /*a*/ in y); //b //c

for (x /*a*/ in y); //b //c

//a
for (x in y);

//a
for (x in y);

/*a*/
for (x of y); //b //c

for (x /*a*/ of y); //b //c

for (x /*a*/ of y); //b //c

//a
for (x of y);

//a
for (x of y);