8263087: Add a MethodHandle combinator that switches over a set of MethodHandles

Reviewed-by: redestad

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

@@ -1679,6 +1679,11 @@ assertEquals("[three, thee, tee]", asListFix.invoke((Object)argv).toString());
         return MethodHandleImpl.Intrinsic.NONE;
     }
 
+    /*non-public*/
+    Object intrinsicData() {
+        return null;
+    }
+
     /*non-public*/
     MethodHandle withInternalMemberName(MemberName member, boolean isInvokeSpecial) {
         if (member != null) {