Smart pointer to %ignored class doesn't expose inherited methods fix.

Regression introduced in swig-3.0.9 by 3efdbc8
Closes #690

Examples/test-suite/java/smart_pointer_ignore_runme.java

@@ -0,0 +1,19 @@
+import smart_pointer_ignore.*;
+
+public class smart_pointer_ignore_runme {
+
+  static {
+    try {
+      System.loadLibrary("smart_pointer_ignore");
+    } catch (UnsatisfiedLinkError e) {
+      System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
+      System.exit(1);
+    }
+  }
+
+  public static void main(String argv[]) {
+    DerivedPtr d = smart_pointer_ignore.makeDerived();
+    d.base();
+    d.derived();
+  }
+}