Reports nested ternary operators. Nested ternary operators can be difficult to read, and it is often preferable to use at least one if statement instead.

Example:

min = x < y ? (x < z ? x : z) : (y < z ? y : z)

After the quick-fix is applied, the result looks like this:

min = if x < y
  x < z ? x : z
else
  y < z ? y : z
end

Inspired by 'Ruby Style Guide'