8285868: x86 intrinsics for floating point method isInfinite

Reviewed-by: kvn, jbhateja

src/java.base/share/classes/java/lang/Double.java

@@ -754,6 +754,7 @@ public final class Double extends Number
      * @return  {@code true} if the value of the argument is positive
      *          infinity or negative infinity; {@code false} otherwise.
      */
+    @IntrinsicCandidate
     public static boolean isInfinite(double v) {
         return (v == POSITIVE_INFINITY) || (v == NEGATIVE_INFINITY);
     }