re PR java/6204 (gcj generates invalid byte code)

* libjava.lang/PR6204.java, libjava.lang/PR6204.out: New test case.
	* libjava.lang/PR6085.java, libjava.lang/PR6085.out: Likewise.

From-SVN: r52056

libjava/testsuite/libjava.lang/PR6204.java

@@ -0,0 +1,38 @@
+class X
+{
+  public Y getY()
+  {
+    return new Y(1);
+  } 
+}
+
+class Y extends X
+{
+  int i;
+
+  Y(int i)
+  {
+    this.i = i;
+  }
+    
+  public Y getY()
+  {
+    return new Y(2);
+  } 
+}
+
+class A
+{
+  X x = new Y(-1);
+  public X getX() { return x; }
+}
+
+public class PR6204 extends A
+{
+  public Y getY() { return super.getX().getY(); }
+  
+  public static void main(String[] args)
+  {
+    System.out.println (new PR6204().getY().i);
+  }
+}