perpetually increasing indentation #6161
Description
trying to format the following code increases the indentation by one level on some of it, every time rustfmt is run, it increases the indentation another level. by running rustfmt repeatedly, I was able to produce line widths of more than 1000.
macro_rules! my_macro {
($($tt:tt)*) => {};
}
fn f() {
my_macro! {
m =>
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa": r"bbbbbbbbbbbbbbbbbbbbbb
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
",
};
}