[IVDesc] Revert bad comment strip

Author: artagnon

llvm/include/llvm/Analysis/IVDescriptors.h

@@ -51,7 +51,7 @@ enum class RecurKind {
   FMaximumNum, ///< FP max with llvm.maximumnum semantics
   FMulAdd,     ///< Sum of float products with llvm.fmuladd(a * b + sum).
   AnyOf,       ///< AnyOf reduction with select(cmp(),x,y) where one of (x,y) is
-               ///< loop invariant.
+               ///< loop invariant, and both x and y are integer type.
   IFindLastIV, ///< FindLast reduction with select(icmp(),x,y) where one of
                ///< (x,y) is increasing loop induction, and both x and y are
                ///< integer type.