while(true);
while(true)1
while(true){}
while(true){1}

while((true));
while((true)){}
while((true)){1}

while((true)) ;
while((true)) {}
while((true)) {1}

while(x&&!y) x++;

while(foo.length<5) {x++;y++}

while(true)while(true)while(true)while(true);

while(true)while(true){while(true)1}

while(true)
while(true)
1;