Add see annotation for range operators (#6934)

Author: VovaStelmashchuk

src/main/java/io/reactivex/rxjava3/core/Flowable.java

@@ -2921,11 +2921,12 @@ public static Flowable<Long> interval(long period, @NonNull TimeUnit unit, @NonN
      * @throws IllegalArgumentException
      *             if {@code count} is less than zero, or if {@code start} + {@code count} &minus; 1 exceeds
      *             {@link Long#MAX_VALUE}
+     * @see #range(int, int)
      */
     @CheckReturnValue
+    @NonNull
     @BackpressureSupport(BackpressureKind.ERROR)
     @SchedulerSupport(SchedulerSupport.COMPUTATION)
-    @NonNull
     public static Flowable<Long> intervalRange(long start, long count, long initialDelay, long period, @NonNull TimeUnit unit) {
         return intervalRange(start, count, initialDelay, period, unit, Schedulers.computation());
     }
@@ -4386,6 +4387,8 @@ public static <T> Flowable<T> never() {
      *             if {@code count} is less than zero, or if {@code start} + {@code count} &minus; 1 exceeds
      *             {@link Integer#MAX_VALUE}
      * @see <a href="http://reactivex.io/documentation/operators/range.html">ReactiveX operators documentation: Range</a>
+     * @see #rangeLong(long, long)
+     * @see #intervalRange(long, long, long, long, TimeUnit)
      */
     @CheckReturnValue
     @BackpressureSupport(BackpressureKind.FULL)

src/main/java/io/reactivex/rxjava3/core/Observable.java

@@ -2537,10 +2537,11 @@ public static Observable<Long> interval(long period, @NonNull TimeUnit unit, @No
      * @throws IllegalArgumentException
      *             if {@code count} is negative, or if {@code start} + {@code count} &minus; 1 exceeds
      *             {@link Long#MAX_VALUE}
+     * @see #range(int, int)
      */
     @CheckReturnValue
-    @SchedulerSupport(SchedulerSupport.COMPUTATION)
     @NonNull
+    @SchedulerSupport(SchedulerSupport.COMPUTATION)
     public static Observable<Long> intervalRange(long start, long count, long initialDelay, long period, @NonNull TimeUnit unit) {
         return intervalRange(start, count, initialDelay, period, unit, Schedulers.computation());
     }
@@ -3895,6 +3896,8 @@ public static <T> Observable<T> never() {
      *             if {@code count} is negative, or if {@code start} + {@code count} &minus; 1 exceeds
      *             {@link Integer#MAX_VALUE}
      * @see <a href="http://reactivex.io/documentation/operators/range.html">ReactiveX operators documentation: Range</a>
+     * @see #rangeLong(long, long)
+     * @see #intervalRange(long, long, long, long, TimeUnit)
      */
     @CheckReturnValue
     @SchedulerSupport(SchedulerSupport.NONE)
@@ -3933,6 +3936,7 @@ public static Observable<Integer> range(int start, int count) {
      *             if {@code count} is negative, or if {@code start} + {@code count} &minus; 1 exceeds
      *             {@link Long#MAX_VALUE}
      * @see <a href="http://reactivex.io/documentation/operators/range.html">ReactiveX operators documentation: Range</a>
+     * @see #intervalRange(long, long, long, long, TimeUnit)
      */
     @CheckReturnValue
     @SchedulerSupport(SchedulerSupport.NONE)