8280534: Enable compile-time doclint reference checking

Reviewed-by: serb, naoto, mchung, lancea, iris

src/java.base/share/classes/java/lang/invoke/MethodHandleProxies.java

@@ -154,7 +154,8 @@ public class MethodHandleProxies {
     // entry points, must be covered by hand-written or automatically
     // generated adapter classes.
     //
-    @SuppressWarnings("removal")
+    @SuppressWarnings({"removal",
+                       "doclint:reference"}) // cross-module links
     @CallerSensitive
     public static <T> T asInterfaceInstance(final Class<T> intfc, final MethodHandle target) {
         if (!intfc.isInterface() || !Modifier.isPublic(intfc.getModifiers()))

src/java.base/share/classes/java/lang/invoke/MethodHandles.java

@@ -2105,6 +2105,7 @@ public class MethodHandles {
          * @jvms 5.5 Initialization
          * @jls 12.7 Unloading of Classes and Interfaces
          */
+        @SuppressWarnings("doclint:reference") // cross-module links
         public Lookup defineHiddenClass(byte[] bytes, boolean initialize, ClassOption... options)
                 throws IllegalAccessException
         {